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Saberi S, Askaripour M, Khaksari M, Amin Rajizadeh M, Abbas Bejeshk M, Akhbari M, Jafari E, Khoramipour K. Exercise training improves diabetic renal injury by reducing fetuin-A, oxidative stress and inflammation in type 2 diabetic rats. Heliyon 2024; 10:e27749. [PMID: 38510054 PMCID: PMC10951597 DOI: 10.1016/j.heliyon.2024.e27749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 02/26/2024] [Accepted: 03/06/2024] [Indexed: 03/22/2024] Open
Abstract
Background Diabetic kidney disease (DKD) stands as a primary contributor to end-stage renal disease, associated with heightened mortality in cardiovascular diseases. This study aimed to explore the impact of an eight-week high-intensity interval training (HIIT) on renal injury in diabetic rats. Methods Twenty-eight male Wistar rats were randomly allocated into four groups: healthy control (CTL), diabetic control (DC), exercise (EX), and diabetes-exercise (D + EX). Induction of diabetes in the DC and D + EX groups occurred through a two-month high-fat diet followed by a single dose of 35 mg/kg streptozotocin (STZ). Rats in the EX and D + EX groups underwent 4-10 intervals of HIIT (80-100% Vmax) over 8 weeks. Subsequently, pathological and biochemical parameters were assessed in the serum and kidney tissue of the experimental groups. Results In the DC group, diabetes led to elevated kidney damage, glomerulosclerosis, fasting blood glucose (FBG), Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) index, animal weight, kidney dysfunction, albuminuria, and glomerular filtration rate. Additionally, serum and kidney levels of fetuin-A increased, along with kidney levels of KIM-1. Mechanistically, diabetes induction resulted in kidney inflammation by elevating levels of tumor necrosis factor-alpha (TNF-α), transforming growth factor beta (TGF-β), and interleukin 6 (IL-6), while reducing IL-10 levels and increasing the IL-6/IL-10 ratio. Furthermore, diabetes triggered renal oxidative stress, evidenced by increased Malondialdehyde (MDA) levels and decreased levels of glutathione peroxidase (GPx), catalase, and superoxide dismutase (SOD). HIIT mitigated the adverse effects of diabetes in the D + EX group compared to the DC group. Conclusion Our findings suggest that HIIT ameliorates type 2 diabetes (T2D)-induced kidney damage by mitigating inflammation, lowering serum levels of fetuin-A, and bolstering antioxidant defenses. This study highlights the potential of HIIT as a time-efficient intervention for diabetic nephropathy.
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Affiliation(s)
- Shadan Saberi
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Majid Askaripour
- Department of Physiology, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Mohammad Khaksari
- Endocrinology and Metabolism Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Amin Rajizadeh
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Abbas Bejeshk
- Cardiovascular Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Akhbari
- Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran
| | - Elham Jafari
- Department of Pathology, Pathology and Stem Cell Research Center, Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Kayvan Khoramipour
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
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Pasmans K, Goossens GH, Groenhuijzen E, Kemper EJ, Reijnders D, Most J, Blaak EE, Watt MJ, Meex RCR. Fetuin B in white adipose tissue induces inflammation and is associated with peripheral insulin resistance in mice and humans. Obesity (Silver Spring) 2024; 32:517-527. [PMID: 38112242 DOI: 10.1002/oby.23961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/13/2023] [Accepted: 10/22/2023] [Indexed: 12/21/2023]
Abstract
OBJECTIVE Fetuin B is a steatosis-responsive hepatokine that causes glucose intolerance in mice, but the underlying mechanisms remain incompletely described. This study aimed to elucidate the mechanisms of action of fetuin B by investigating its putative effects on white adipose tissue metabolism. METHODS First, fetuin B gene and protein expression was measured in multiple organs in mice and in cultured adipocytes. Next, the authors performed a hyperinsulinemic-euglycemic clamp in mice and in humans to examine the link between white adipose tissue fetuin B content and indices of insulin sensitivity. Finally, the effect of fetuin B on inflammation was investigated in cultured adipocytes by quantitative polymerase chain reaction and full RNA sequencing. RESULTS This study demonstrated in adipocytes and mice that fetuin B was produced and secreted by the liver and taken up by adipocytes and adipose tissue. There was a strong negative correlation between white adipose tissue fetuin B content and peripheral insulin sensitivity in mice and in humans. RNA sequencing and polymerase chain reaction analysis revealed that fetuin B induced an inflammatory response in adipocytes. CONCLUSIONS Fetuin B content in white adipose tissue strongly associated with peripheral insulin resistance in mice and humans. Furthermore, fetuin B induced a proinflammatory response in adipocytes, which might drive peripheral insulin resistance.
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Affiliation(s)
- Kenneth Pasmans
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Human Biology, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Gijs H Goossens
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Human Biology, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Evi Groenhuijzen
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Human Biology, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Esther J Kemper
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Human Biology, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Dorien Reijnders
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Human Biology, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Jasper Most
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Human Biology, Maastricht University Medical Centre+, Maastricht, The Netherlands
- Department of Orthopedics, Zuyderland Medical Center, Sittard-Geleen, The Netherlands
| | - Ellen E Blaak
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Human Biology, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Matthew J Watt
- Department of Anatomy and Physiology, School of Biomedical Sciences, Faculty of Medicine, Dentistry & Health Sciences, The University of Melbourne, Melbourne, Australia
- Department of Physiology, Monash University, Clayton, Australia
| | - Ruth C R Meex
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Human Biology, Maastricht University Medical Centre+, Maastricht, The Netherlands
- Department of Physiology, Monash University, Clayton, Australia
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Valencia-Ortega J, Solis-Paredes JM, Saucedo R, Estrada-Gutierrez G, Camacho-Arroyo I. Excessive Pregestational Weight and Maternal Obstetric Complications: The Role of Adipokines. Int J Mol Sci 2023; 24:14678. [PMID: 37834125 PMCID: PMC10572963 DOI: 10.3390/ijms241914678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
There is a high frequency of overweight and obesity in women of reproductive age. Women who start pregnancy with overweight or obesity have an increased risk of developing maternal obstetric complications such as gestational hypertension, pre-eclampsia, gestational diabetes mellitus, postpartum hemorrhage, and requiring C-section to resolve the pregnancy with a higher risk of C-section surgical site infection. Excessive weight in pregnancy is characterized by dysregulation of adipokines, the functions of which partly explain the predisposition of pregnant women with overweight or obesity to these maternal obstetric complications. This review compiles, organizes, and analyzes the most recent studies on adipokines in pregnant women with excess weight and the potential pathophysiological mechanisms favoring the development of maternal pregnancy complications.
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Affiliation(s)
- Jorge Valencia-Ortega
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 11000, Mexico;
| | - Juan Mario Solis-Paredes
- Department of Reproductive and Perinatal Health Research, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Mexico City 11000, Mexico;
| | - Renata Saucedo
- Unidad de Investigación Médica en Enfermedades Endocrinas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City 06720, Mexico;
| | | | - Ignacio Camacho-Arroyo
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 11000, Mexico;
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Kosmalski M, Śliwińska A, Drzewoski J. Non-Alcoholic Fatty Liver Disease or Type 2 Diabetes Mellitus—The Chicken or the Egg Dilemma. Biomedicines 2023; 11:biomedicines11041097. [PMID: 37189715 DOI: 10.3390/biomedicines11041097] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/28/2023] [Accepted: 03/28/2023] [Indexed: 04/08/2023] Open
Abstract
In clinical practice, we often deal with patients who suffer from non-alcoholic fatty liver disease (NAFLD) concurrent with type 2 diabetes mellitus (T2DM). The etiopathogenesis of NAFLD is mainly connected with insulin resistance (IR) and obesity. Similarly, the latter patients are in the process of developing T2DM. However, the mechanisms of NAFLD and T2DM coexistence have not been fully elucidated. Considering that both diseases and their complications are of epidemic proportions and significantly affect the length and quality of life, we aimed to answer which of these diseases appears first and thereby highlight the need for their diagnosis and treatment. To address this question, we present and discuss the epidemiological data, diagnoses, complications and pathomechanisms of these two coexisting metabolic diseases. This question is difficult to answer due to the lack of a uniform procedure for NAFLD diagnosis and the asymptomatic nature of both diseases, especially at their beginning stages. To conclude, most researchers suggest that NAFLD appears as the first disease and starts the sequence of circumstances leading ultimately to the development of T2DM. However, there are also data suggesting that T2DM develops before NAFLD. Despite the fact that we cannot definitively answer this question, it is very important to bring the attention of clinicians and researchers to the coexistence of NAFLD and T2DM in order to prevent their consequences.
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Affiliation(s)
- Marcin Kosmalski
- Department of Clinical Pharmacology, Medical University of Lodz, 90-153 Lodz, Poland
| | - Agnieszka Śliwińska
- Department of Nucleic Acids Biochemistry, Medical University of Lodz, 92-213 Lodz, Poland
| | - Józef Drzewoski
- Central Teaching Hospital of Medical University of Lodz, 92-213 Lodz, Poland
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Lőrincz H, Somodi S, Ratku B, Harangi M, Paragh G. Crucial Regulatory Role of Organokines in Relation to Metabolic Changes in Non-Diabetic Obesity. Metabolites 2023; 13:270. [PMID: 36837889 PMCID: PMC9967669 DOI: 10.3390/metabo13020270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/09/2023] [Accepted: 02/12/2023] [Indexed: 02/16/2023] Open
Abstract
Obesity is characterized by an excessive accumulation of fat leading to a plethora of medical complications, including coronary artery disease, hypertension, type 2 diabetes mellitus or impaired glucose tolerance and dyslipidemia. Formerly, several physiological roles of organokines, including adipokines, hepatokines, myokines and gut hormones have been described in obesity, especially in the regulation of glucose and lipid metabolism, insulin sensitivity, oxidative stress, and low-grade inflammation. The canonical effect of these biologically active peptides and proteins may serve as an intermediate regulatory level that connects the central nervous system and the endocrine, autocrine, and paracrine actions of organs responsible for metabolic and inflammatory processes. Better understanding of the function of this delicately tuned network may provide an explanation for the wide range of obesity phenotypes with remarkable inter-individual differences regarding comorbidities and therapeutic responses. The aim of this review is to demonstrate the role of organokines in the lipid and glucose metabolism focusing on the obese non-diabetic subgroup. We also discuss the latest findings about sarcopenic obesity, which has recently become one of the most relevant metabolic disturbances in the aging population.
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Affiliation(s)
- Hajnalka Lőrincz
- Division of Metabolic Diseases, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Sándor Somodi
- Department of Emergency Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
- Institute of Health Studies, Faculty of Health Sciences, University of Debrecen, H-4032 Debrecen, Hungary
| | - Balázs Ratku
- Department of Emergency Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
- Institute of Health Studies, Faculty of Health Sciences, University of Debrecen, H-4032 Debrecen, Hungary
- Doctoral School of Health Sciences, University of Debrecen, H-4032 Debrecen, Hungary
| | - Mariann Harangi
- Division of Metabolic Diseases, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
- Institute of Health Studies, Faculty of Health Sciences, University of Debrecen, H-4032 Debrecen, Hungary
| | - György Paragh
- Division of Metabolic Diseases, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
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Rodriguez Y, Dunfield J, Roderique T, Ni HM. Liver-adipose tissue crosstalk in alcohol-associated liver disease: The role of mTOR. LIVER RESEARCH 2022; 6:227-237. [PMID: 37124481 PMCID: PMC10134744 DOI: 10.1016/j.livres.2022.11.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Background Alcohol-associated liver disease (ALD) is a major chronic liver disease around the world without successful treatment. Acute alcoholic hepatitis is one of the most severe forms of ALD with high mortality, which is often associated with binge drinking. Alcohol drinking dysregulates lipid metabolism, increases adipose tissue lipolysis, and induces liver steatosis and adipose tissue atrophy. Increasing evidence implicates that crosstalk of liver and adipose tissue in the pathogenesis of ALD. Mechanistic target of rapamycin (mTOR) is a phosphatidylinositol 3-kinase (PI3K)-like serine/threonine protein kinase that regulates lipid metabolism, cell proliferation and autophagy. However, the role of mTOR in regulating adipose-liver crosstalk in binge drinking-induced organ damage remains unclear. Methods We generated liver-specific and adipocyte-specific regulatory-associated protein of mTOR (Rptor) knockout (Rptor LKO and Rptor AKO) as well as Mtor knockout (Mtor LKO and Mtor AKO) mice, by crossing Rptor flox and Mtor flox mice with albumin Cre or adiponectin Cre mice, respectively. In addition, we generated liver and adipocyte double deletion of Rptor or Mtor (Mtor LAKO and Rptor LAKO) mice. The knockout mice with their matched wild-type littermates (Rptor WT and Mtor WT) were subjected to acute gavage of 7 g/kg ethanol. Results Mice with adipocyte deletion of Rptor or Mtor developed hepatomegaly and adipose tissue atrophy. Alcohol gavage increased liver injury, hepatic steatosis and inflammation in mouse livers as demonstrated by elevated serum alanine aminotransferase activities, increased hepatic levels of triglyceride and increased hepatic numbers of CD68 positive macrophages in mouse livers after alcohol gavage. Liver injury was further exacerbated by deletion of adipocyte Rptor or Mtor. Serum adipokine array analysis revealed that increased levels of pro-inflammatory cytokines IL-6 and TNFα as well as chemokine MCP-1 following acute alcohol gavage in wild-type mice, which were further increased in adipocyte-specific Mtor or Rptor knockout mice. Conversely, levels of anti-inflammatory cytokine IL-10 decreased in adipocyte-specific Mtor or Rptor knockout mice. The levels of circulating fibroblast growth factor 21 (FGF21) increased whereas levels of circulating adiponectin and fetuin A decreased in wild-type mice after alcohol gavage. Intriguingly, adipocyte-specific Mtor or Rptor knockout mice already had decreased basal level of FGF21 which increased by alcohol gavage. Moreover, adipocyte-specific Mtor or Rptor knockout mice already had increased basal level of adiponectin and decreased fetuin A which were not further changed by alcohol gavage. Conclusions Adipocyte but not hepatocyte ablation of Mtor pathway contributes to acute alcohol-induced liver injury with increased inflammation. Our results demonstrate the critical role of adipocyte mTOR in regulating the adipose-liver crosstalk in ALD.
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Affiliation(s)
- Yssa Rodriguez
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS, USA
| | - Jack Dunfield
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS, USA
| | - Tyson Roderique
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS, USA
| | - Hong-Min Ni
- Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, KS, USA
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Lanthier N, Lebrun V, Molendi-Coste O, van Rooijen N, Leclercq IA. Liver Fetuin-A at Initiation of Insulin Resistance. Metabolites 2022; 12:1023. [PMID: 36355106 PMCID: PMC9693222 DOI: 10.3390/metabo12111023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/18/2022] [Accepted: 10/22/2022] [Indexed: 11/25/2023] Open
Abstract
Hepatokines (liver secreted proteins with possible distant action) are emerging potential players in insulin resistance in type 2 diabetic patients. Here, we explored the effect of a high-fat diet on the expression of fetuin-A, one of those candidate liver proteins, and its relationship with liver macrophage activation. Mice were fed a normal diet or a high-fat diet for 3 days, known to initiate steatosis and liver insulin resistance. A preventive liver macrophage depletion was obtained by intravenous injection of clodronate-loaded liposomes. The mRNA and protein expression of fetuin-A was evaluated by qPCR, Western blot and immunofluorescence on different insulin-sensitive tissues (liver, adipose tissue, and muscle). Short-term high-fat diet-induced steatosis, liver macrophage activation, and hepatic insulin resistance together with a significantly increased expression of liver AHSG (α2-HS glycoprotein/fetuin-A) mRNA and serum fetuin-A concentration. On immunofluorescence, fetuin-A was mostly expressed in centrilobular hepatocytes. This increase in fetuin-A under high-fat diet was not evidenced in other peripheral insulin-sensitive tissues (skeletal muscle and adipose tissue). The mRNA expression of α2-HS glycoprotein was 800 times higher within the liver compared with the adipose tissue or the muscle. Liver macrophage depletion that significantly ameliorated insulin sensitivity was associated with a significant decrease in α2-HS glycoprotein mRNA expression. In conclusion, this study demonstrated liver fetuin-A overexpression at the initiation of high-fat diet feeding, concurrent with hepatic steatosis and insulin resistance. Targeting liver macrophages in this setting reduced liver α2-HS glycoprotein expression suggesting that fetuin-A acts as an hepatokine with proinsulin resistance effects.
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Affiliation(s)
- Nicolas Lanthier
- Laboratory of Gastroenterology and Hepatology, Institut de Recherche Expérimentale et Clinique, UCLouvain, 1200 Brussels, Belgium
- Service d’Hépato-Gastroentérologie, Cliniques universitaires Saint-Luc, UCLouvain, 1200 Brussels, Belgium
| | - Valérie Lebrun
- Laboratory of Gastroenterology and Hepatology, Institut de Recherche Expérimentale et Clinique, UCLouvain, 1200 Brussels, Belgium
| | - Olivier Molendi-Coste
- Laboratory of Gastroenterology and Hepatology, Institut de Recherche Expérimentale et Clinique, UCLouvain, 1200 Brussels, Belgium
| | - Nico van Rooijen
- Department of Molecular Cell Biology, Vrije Universiteit Medical Center, 1081 Amsterdam, The Netherlands
| | - Isabelle A. Leclercq
- Laboratory of Gastroenterology and Hepatology, Institut de Recherche Expérimentale et Clinique, UCLouvain, 1200 Brussels, Belgium
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Kulik-Kupka K, Jabczyk M, Nowak J, Jagielski P, Hudzik B, Zubelewicz-Szkodzińska B. Fetuin-A and Its Association with Anthropometric, Atherogenic, and Biochemical Parameters and Indices among Women with Polycystic Ovary Syndrome. Nutrients 2022; 14:nu14194034. [PMID: 36235688 PMCID: PMC9571247 DOI: 10.3390/nu14194034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/22/2022] [Accepted: 09/25/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Polycystic ovary syndrome (PCOS) contributes to metabolic and endocrine complications for women of reproductive age. We set out to assess the relationship between fetuin-A and anthropometric parameters, anthropometric indices, body composition, and atherogenic indices, as well as carbohydrate and lipid profile in women with polycystic ovary syndrome (PCOS). Methods. The study included 49 women with PCOS, aged between 18 and 39 years. All patients were tested for fetuin-A, fasting glucose and insulin, and lipid parameters, after oral-glucose administration were done. All of them underwent anthropometric measurements and body composition analyses such as BMI (Body Mass Index), WHR (Waist to Hip Ratio), WHtR (Waist to Height Ratio), BAI (Body Adiposity Index), VAI (Visceral Adiposity Index), LAP (Lipid Accumulation Product), BRI (Body Roundness Index), ABSI (A Body Shape Index), ABSI z-core (ABSI with added mortality risk in correlation with age and gender), AIP (Atherogenic Risk of Plasma), AC (Atherogenic Coefficient), Castelli risk index-I, and Castelli risk index-II. Results: Obesity was diagnosed in 18 patients (36.7%) based on BMI index and 7 patients (14.3%) based on BAI index. Significantly increased risk of metabolic complications was observed among 26 patients (53.1%) based on waist circumferences. Based on VAI index, risk of metabolic disease was observed among 17 women (34.7%). Dyslipidemia such as hypercholesterolemia, hypertriglyceridemia, and mixed hyperlipidemia was detected among 14 patients (28.6%), and insulin resistance was observed among 29 (59.2%). There was a positive correlation between fetuin-A and total cholesterol (r = 0.30, p = 0.0034). There was no statistically significant correlation between fetuin-A and all of the anthropometric measurements and anthropometric indices, atherogenic indices, and other biochemical parameters. Conclusion: Fetuin-A correlates with hypercholesterolemia. It is necessary to conduct further research regarding the relationship between fetuin-A concentrations and body composition, anthropometric indices, and metabolic disorders in women with PCOS. Surprisingly, the effects of concentration of fetuin-A and anthropometric indices (BAI, VAI, LAP, ABSI, ABSI z-core) in woman with PCOS have not been closely examined. Future studies that take these variables into account will need to be undertaken. More information on the relationship between fetuin-A concentrations and anthropometric indices would aid us in establishing a greater degree of accuracy on this matter.
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Affiliation(s)
- Karolina Kulik-Kupka
- Department of Nutrition-Related Disease Prevention, Department of Metabolic Disease Prevention, Faculty of Health Sciences in Bytom, Medical University of Silesia, 41-900 Bytom, Poland
| | - Marzena Jabczyk
- Department of Nutrition-Related Disease Prevention, Department of Metabolic Disease Prevention, Faculty of Health Sciences in Bytom, Medical University of Silesia, 41-900 Bytom, Poland
| | - Justyna Nowak
- Department of Cardiovascular Disease Prevention, Department of Metabolic Disease Prevention, Faculty of Health Sciences in Bytom, Medical University of Silesia, 41-900 Bytom, Poland
- Correspondence: ; Tel.: +48-3239-76541
| | - Paweł Jagielski
- Department of Nutrition and Drug Research, Institute of Public Health, Faculty of Health Sciences, Jagiellonian University Medical College, 31-066 Cracow, Poland
| | - Bartosz Hudzik
- Department of Cardiovascular Disease Prevention, Department of Metabolic Disease Prevention, Faculty of Health Sciences in Bytom, Medical University of Silesia, 41-900 Bytom, Poland
- Third Department of Cardiology, Silesian Center for Heart Disease, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 41-800 Zabrze, Poland
| | - Barbara Zubelewicz-Szkodzińska
- Department of Nutrition-Related Disease Prevention, Department of Metabolic Disease Prevention, Faculty of Health Sciences in Bytom, Medical University of Silesia, 41-900 Bytom, Poland
- Department of Endocrinology, District Hospital, 41-940 Piekary Slaskie, Poland
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Fetuin-A in Activated Liver Macrophages Is a Key Feature of Non-Alcoholic Steatohepatitis. Metabolites 2022; 12:metabo12070625. [PMID: 35888749 PMCID: PMC9319870 DOI: 10.3390/metabo12070625] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/28/2022] [Accepted: 07/04/2022] [Indexed: 02/04/2023] Open
Abstract
Fetuin-A, a plasma multifunctional protein known to play a role in insulin resistance, is usually presented as a liver secreted protein. However, fetuin-A adipose tissue production has been also described. Here, we evaluated fetuin-A production by the liver and the adipose tissue during metabolic dysfunction-associated fatty liver disease (MAFLD)-non-alcoholic steatohepatitis (NASH) development. Fetuin-A was evaluated by enzyme-linked immunosorbent assay (ELISA), polymerase chain reaction (PCR), Western blot, and immunofluorescence in male foz−/− mice fed a normal diet (ND) or a high fat diet (HFD) at various timepoints and in MAFLD-NASH patients. Foz−/− mice fed a short-term HFD developed liver steatosis, insulin resistance, and increased circulating levels of fetuin-A compared to ND-fed mice. In mice and patients with NASH, fetuin-A was located not only in healthy or steatotic hepatocytes but also in some macrophages forming lipogranulomas. In both mice and humans, a significant amount of fetuin-A was present in the adipose tissue compared to the liver. However, messenger ribonucleic acid levels and cell culture experiments indicate that fetuin-A is produced by the liver but not by the adipose tissue. In conclusion, fetuin-A is produced by steatotic hepatocytes at early timepoints in MAFLD and correlates with insulin resistance both in mice and humans. In NASH, fetuin-A also co-localizes with activated liver macrophages and could be interpreted as a signal released by damaged hepatocytes.
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Selvaraju V, Babu JR, Geetha T. Multiplexed measurements of salivary fetuin-A, insulin, and adiponectin as potential non-invasive biomarkers in childhood obesity. Cytokine 2022; 153:155843. [DOI: 10.1016/j.cyto.2022.155843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 12/25/2022]
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Yurtcu N, Oral S, Celik S, Calıskan ST, Alagoz M, Dahan MH. Predıctıve value of pregnancy of follıcular fluıd fetuın-A and -B levels ın infertıle women after intra-cytoplasmic sperm injection. J Obstet Gynaecol Res 2022; 48:178-187. [PMID: 34708901 DOI: 10.1111/jog.15070] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 11/27/2022]
Abstract
AIM We aimed to investigate the value of follicular fluid fetuins-A and -B to predict successful IVF and pregnancy outcomes in infertile women with poor, normal, and high ovarian reserve. METHODS The follicular fluid of 96 infertile women who underwent intra-cytoplasmic sperm injection (ICSI) procedure was analyzed. Fetuins-A and -B levels were examined and compared in those who could achieve pregnancy and those who could not. Receiver operating characteristic curve analyzes were used to determine cut-off and statistically significant associations for fetuins-A and -B. RESULTS Follicular fluid fetuin-A levels were higher in cases with weak ovarian reserve (OR) (p < 0.05) and higher in patients who did not achieve clinical pregnancy (p < 0.05). Conversely, the follicular fluid fetuin-B levels were lower in cases with poor OR (p < 0.05) and were lower in patients who did not achieve a clinical pregnancy (p < 0.05). A follicular fluid fetuin-A concentration ≤ 19.12 ng/mL had a sensitivity and specificity of 94.74% and 93.1%, respectively, at predicting clinical pregnancy. While the follicular fluid fetuin-B concentration >24.7 ng/mL had sensitivity and specificity of 71.1% and 51.7%, respectively, for clinical pregnancy prediction. CONCLUSION Overall, high levels of follicular fluid fetuin-A may be independently associated with unsuccessful IVF irrespective of OR grouping. A low level of follicular fetuin-B was also associated with failed IVF. The sensitivity and specificity were found to be higher for fetuin-A in predicting clinical pregnancy. Therefore, the follicular fluid fetuin-A may be more predictive for successful IVF and clinical pregnancy outcomes than follicular fluid fetuin-B.
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Affiliation(s)
- Nazan Yurtcu
- Department of Obstetrics and Gynecology, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Serkan Oral
- Department of Obstetrics and Gynecology, Faculty of Medicine, Halic University, Istanbul, Turkey
| | - Sebahattin Celik
- Department of Obstetrics and Gynecology, Balikesir State Hospital, Balikesir, Turkey
| | | | - Murat Alagoz
- In Vitro Fertilization Unit, Department of Obstetrics and Gynecology, Medical Park Hospital, Samsun, Turkey
| | - Michael H Dahan
- McGill University Reproductive Center, Montréal, Quebec, Canada
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Fetuin-A as a Marker of Insulin Resistance. SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2021. [DOI: 10.2478/sjecr-2021-0042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract
Fetuin–A is a glycoprotein which helps in the regulation of metabolism. It is an early marker of insulin resistance (IR). The aim of this study was to evaluate the role of Fetuin–A as a predictive biomarker in cases of newly detected type 2 diabetes (NDD). The study involved 60 NDD and 60 Normal Healthy Controls (NHC). All the demographics and anthropological characteristics were noted. Fasting blood samples were drawn and various biochemical parameters were analyzed. The homeostatic model assessment of insulin resistance (HOMA-IR) and the quantitative insulin sensitivity check index (QUICKI) score was calculated. Chisquare, student T-test and Mann Whitney U tests were employed to associate and compare the mean and median between the NDD and NHC groups. Pearson's and Spearman’s correlation analysis were employed to examine the relationship of Fetuin–A levels with parametric and nonparametric variables. The independent predictors of Fetuin–A was determined by employing multiple forward linear regression. Fetuin–A was significantly high in NDD compared to NHC (1323 vs. 306.98 mcg/mL; p<0.001). Majority of NDD patients demonstrated IR based on the HOMA-IR (88.33% vs. 66.67%) and QUICKI score (96.67% vs. 85%). The multiple linear regression analysis showed that systolic blood pressure, age and QUICKI score were independently associated with Fetuin–A (p value <0.01). Fetuin–A may be used as a biomarker to detect NDD. Therefore, early detection of Fetuin–A levels in NDD gives an opportunity for suitable patient management.
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Poloczek J, Tarnawska M, Chełmecka E, Łaszczyca P, Gumprecht J, Stygar D. High Fat, High Sugar Diet and DJOS Bariatric Surgery Influence Plasma Levels of Fetuin-B, Growth Differentiation Factor-15, and Pentraxin 3 in Diet-Induced Obese Sprague-Dawley Rats. Nutrients 2021; 13:nu13103632. [PMID: 34684637 PMCID: PMC8539134 DOI: 10.3390/nu13103632] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 01/14/2023] Open
Abstract
The liver plays a central role in glucose and fatty acid metabolism and acts as an endocrine organ that secretes hepatokines with diverse systemic effects. The study aimed to examine the influence of duodenojejunal omega switch (DJOS) bariatric surgery in combination with different diets on glucose administration parameters and hepatokines levels. After 8 weeks on high fat, high sugar diet (HFS) or control diets (CD), Sprague-Dawley rats underwent DJOS or SHAM (control) surgery. For the next 8 weeks after the surgery, half of DJOS and SHAM-operated animals were kept on the same diet as before, and half had a diet change. The oral glucose tolerance test (OGTT) was performed three times: 8 weeks before and 4 and 8 weeks after surgery. Fetuin-B, growth differentiation factor-15 (GDF-15), pentraxin 3 (PTX3) plasma levels were analyzed. DJOS surgery had a beneficial effect on oral glucose tolerance test (OGTT) results and the area under the curve (AUCOGTT). The OGTT results depended on the time elapsed after the surgery, the type of diet used, the surgery performed, and the interaction between these factors. DJOS bariatric surgery reduced fetuin-B and GDF15 plasma levels. Interaction between the type of surgery performed and diet used influenced the fetuin-B and PTX-3 plasma levels. A dietary regime is essential to achieve therapeutic and clinical goals after bariatric surgery.
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Affiliation(s)
- Jakub Poloczek
- Department of Rehabilitation, 3rd Specialist Hospital in Rybnik, Energetyków 46, 44-200 Rybnik, Poland;
- Department of Internal Medicine, Diabetology, and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Poniatowskiego 15, 40-055 Katowice, Poland;
| | - Monika Tarnawska
- Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland; (M.T.); (P.Ł.)
| | - Elżbieta Chełmecka
- Department of Statistics, Department of Instrumental Analysis, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Poniatowskiego 15, 40-055 Katowice, Poland;
| | - Piotr Łaszczyca
- Faculty of Natural Sciences, Institute of Biology, Biotechnology and Environmental Protection, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland; (M.T.); (P.Ł.)
| | - Janusz Gumprecht
- Department of Internal Medicine, Diabetology, and Nephrology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Poniatowskiego 15, 40-055 Katowice, Poland;
| | - Dominika Stygar
- Department of Physiology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Poniatowskiego 15, 40-055 Katowice, Poland
- Correspondence: ; Tel.: +48-32-272-23-62
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Low Levels of Serum Fetuin-A and Retinol-Binding Protein 4 Correlate with Lipoprotein Subfractions in Morbid Obese and Lean Non-Diabetic Subjects. Life (Basel) 2021; 11:life11090881. [PMID: 34575030 PMCID: PMC8471801 DOI: 10.3390/life11090881] [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: 07/12/2021] [Revised: 08/14/2021] [Accepted: 08/23/2021] [Indexed: 12/16/2022] Open
Abstract
Background: Fetuin-A and retinol-binding protein 4 (RBP4) are secreted as both hepatokine and adipokine. These are involved in insulin resistance, obesity-related dyslipidemia, and atherosclerosis. To date, correlations of circulating fetuin-A and RBP4 with lipoprotein subfractions as well as high-density lipoprotein (HDL)-linked proteins have not been entirely investigated in morbid obese and lean non-diabetic subjects. Methods: One-hundred obese non-diabetic patients (body mass index, BMI: 42.5 ± 8.1 kg/m2) along with 32 gender and age-matched normal weight controls (BMI: 24.5 ± 2.5 kg/m2) were enrolled in our study. Serum fetuin-A and RBP4 were measured by ELISA. Lipoprotein subfractions were distributed by Lipoprint gelelectrophoresis. Results: Serum fetuin-A and RBP4 were unexpectedly lower in obese patients (p < 0.01 and p < 0.01, respectively) compared to controls and correlated with each other (r = 0.37; p < 0.001). Fetuin-A had positive correlations with HDL-C (r = 0.22; p = 0.02), apolipoprotein AI (apoAI) (r = 0.33; p < 0.001), very-low density lipoprotein (VLDL) subfraction (r = 0.18; p = 0.05), and large HDL subfraction levels (r = 0.3; p = 0.001) but did not show correlation with carbohydrate parameters in all subjects. RBP4 correlated positively with HDL-C (r = 0.2; p = 0.025), apoAI (r = 0.23; p = 0.01), VLDL subfraction (r = 0.37; p < 0.001), intermediate HDL subfraction (r = 0.23; p = 0.01), and small HDL subfraction (r = 0.21; p = 0.02) concentrations, as well as C-peptide levels in overall participants. Backward stepwise multiple regression analysis showed that serum fetuin-A concentration is best predicted by RBP4 and large HDL subfraction. In model 2, VLDL subfraction was the independent predictor of serum RBP4 level. Conclusions: Our data may indicate a potential role of fetuin-A and RBP4 in impaired lipoprotein metabolism associated with obesity.
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Kavalakatt S, Khadir A, Madhu D, Koistinen HA, Al-Mulla F, Tuomilehto J, Abubaker J, Tiss A. Urocortin 3 overexpression reduces ER stress and heat shock response in 3T3-L1 adipocytes. Sci Rep 2021; 11:15666. [PMID: 34341463 PMCID: PMC8329193 DOI: 10.1038/s41598-021-95175-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 07/19/2021] [Indexed: 11/09/2022] Open
Abstract
The neuropeptide urocortin 3 (UCN3) has a beneficial effect on metabolic disorders, such as obesity, diabetes, and cardiovascular disease. It has been reported that UCN3 regulates insulin secretion and is dysregulated with increasing severity of obesity and diabetes. However, its function in the adipose tissue is unclear. We investigated the overexpression of UCN3 in 3T3-L1 preadipocytes and differentiated adipocytes and its effects on heat shock response, ER stress, inflammatory markers, and glucose uptake in the presence of stress-inducing concentrations of palmitic acid (PA). UCN3 overexpression significantly downregulated heat shock proteins (HSP60, HSP72 and HSP90) and ER stress response markers (GRP78, PERK, ATF6, and IRE1α) and attenuated inflammation (TNFα) and apoptosis (CHOP). Moreover, enhanced glucose uptake was observed in both preadipocytes and mature adipocytes, which is associated with upregulated phosphorylation of AKT and ERK but reduced p-JNK. Moderate effects of UCN3 overexpression were also observed in the presence of 400 μM of PA, and macrophage conditioned medium dramatically decreased the UCN3 mRNA levels in differentiated 3T3-L1 cells. In conclusion, the beneficial effects of UCN3 in adipocytes are reflected, at least partially, by the improvement in cellular stress response and glucose uptake and attenuation of inflammation and apoptosis.
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Affiliation(s)
- Sina Kavalakatt
- Biochemistry and Molecular Biology Department, Research Division, Dasman Diabetes Institute, P.O. Box 1180, 15462, Dasman, Kuwait
| | - Abdelkrim Khadir
- Biochemistry and Molecular Biology Department, Research Division, Dasman Diabetes Institute, P.O. Box 1180, 15462, Dasman, Kuwait
| | - Dhanya Madhu
- Biochemistry and Molecular Biology Department, Research Division, Dasman Diabetes Institute, P.O. Box 1180, 15462, Dasman, Kuwait
| | - Heikki A Koistinen
- University of Helsinki and Department of Medicine, Helsinki University Central Hospital, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Fahd Al-Mulla
- Research Division, Dasman Diabetes Institute, Dasman, Kuwait
| | - Jaakko Tuomilehto
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Department, Research Division, Dasman Diabetes Institute, P.O. Box 1180, 15462, Dasman, Kuwait
| | - Ali Tiss
- Biochemistry and Molecular Biology Department, Research Division, Dasman Diabetes Institute, P.O. Box 1180, 15462, Dasman, Kuwait.
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Bourebaba N, Kornicka-Garbowska K, Marycz K, Bourebaba L, Kowalczuk A. Laurus nobilis ethanolic extract attenuates hyperglycemia and hyperinsulinemia-induced insulin resistance in HepG2 cell line through the reduction of oxidative stress and improvement of mitochondrial biogenesis - Possible implication in pharmacotherapy. Mitochondrion 2021; 59:190-213. [PMID: 34091077 DOI: 10.1016/j.mito.2021.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/23/2021] [Accepted: 06/01/2021] [Indexed: 02/03/2023]
Abstract
The aim of this study was to establish the potential effect of Laurus nobilis ethanolic extract on improving insulin sensitivity and protecting liver cells from apoptosis, mitochondrial dysfunction, oxidative stress (OS), and inflammation; all of which considered as major alterations occurring during insulin resistance (IR) as well as diabetes onset, in hyperinsulinemic and hyperglycemic-induced HepG2 cell line. Thereby, L. nobilis ethanolic extract has been first chemically characterized using LC-MS/MS technique. Subsequently, HepG2 cells were pre-treated with an optimal concentration of L. nobilis ethanolic extract for 24 h, and then, subjected to 30 mM D-glucose and 500 nM insulin mixture for another 24 h in order to induce hyperinsulinemia and hyperglycaemia (HI/HG) status. Several parameters such as biocompatibility, hepatotoxicity, reactive oxygen species (ROS), mitochondrial transmembrane potential, dynamics, and metabolism, multicaspase activity, glucose uptake, in addition to genes and proteins expression levels were investigated. The obtained results showed that the bioactive extract of Laurus nobilis increased the number of living cells and their proliferation rate, significantly attenuated apoptosis by modulating pro-apoptotic pathways (p21, p53 and Bax genes), allowed a relative normalization of caspases-activity, and decreased the expression of inflammatory markers including c-Jun, NF-κB and Tlr4 transcripts. L. Nobilis ethanolic extract reduced considerably total intracellular ROS levels in challenged HepG2 cells, and regulated the mitochondrial OXPHOS pathway, demonstrating the potential antioxidant effect of the plant. Ethanolic plant extract increased insulin sensitivity, since an elevated expression of master transcripts responsible for insulin sensitivity including IRS1, IRS2, INSR was found. Taken together, obtained data suggest that L. nobilis ethanolic extract offers new insights in the development of potential antioxidant, insulin sensitizing as well as hepatoprotective drugs.
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Affiliation(s)
- Nabila Bourebaba
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, Norwida 27B, 50-375 Wrocław, Poland; International Institute of Translational Medicine, Jesionowa 11, Malin 55-114 Wisznia Mała, Poland
| | - Katarzyna Kornicka-Garbowska
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, Norwida 27B, 50-375 Wrocław, Poland; International Institute of Translational Medicine, Jesionowa 11, Malin 55-114 Wisznia Mała, Poland
| | - Krzysztof Marycz
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, Norwida 27B, 50-375 Wrocław, Poland; International Institute of Translational Medicine, Jesionowa 11, Malin 55-114 Wisznia Mała, Poland
| | - Lynda Bourebaba
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, Norwida 27B, 50-375 Wrocław, Poland; International Institute of Translational Medicine, Jesionowa 11, Malin 55-114 Wisznia Mała, Poland.
| | - Anna Kowalczuk
- National Medicines Institute, Chełmska 30/34, 00-725 Warsaw, Poland
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Ren G, Bowers RL, Kim T, Mahurin AJ, Grandjean PW, Mathews ST. Serum fetuin-A and Ser312 phosphorylated fetuin-A responses and markers of insulin sensitivity after a single bout of moderate intensity exercise. Physiol Rep 2021; 9:e14773. [PMID: 33650781 PMCID: PMC7923554 DOI: 10.14814/phy2.14773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 11/28/2022] Open
Abstract
Fetuin‐A (Fet‐A), secreted by the liver and adipose tissue, inhibits insulin receptor tyrosine kinase activity and modulates insulin action. Numerous studies have shown association of elevated serum Fet‐A concentrations with obesity, non‐alcoholic fatty liver disease, and type 2 diabetes. Both moderate body weight loss (5%–10%) and significant body weight loss have been shown to decrease serum Fet‐A and improve insulin sensitivity. Currently, there are no studies examining the effects of a single bout of exercise on serum Fet‐A or Ser312‐pFet‐A (pFet‐A) responses. We hypothesized that a single bout of moderate‐intensity exercise will lower serum Fet‐A and that these changes will be associated with an improvement in insulin sensitivity. Thirty‐one individuals with obesity and 11 individuals with normal body weight were recruited. Participants underwent a single bout of treadmill walking, expending 500 kcal at 60%–70% VO2max. Oral glucose tolerance tests (OGTT) were administered before the single bout of exercise (Pre Ex) and 24 h after exercise (24h Post Ex). In individuals with obesity, we observed a transient elevation of serum Fet‐A concentrations, but not pFet‐A, immediately after exercise (Post Ex). Further, a single bout of exercise decreased glucoseAUC, insulinAUC, and insulin resistance index in individuals with obesity. Consistent with this improvement in insulin sensitivity, we observed that Fet‐AAUC, pFet‐AAUC, 2 h pFet‐A, and 2 h pFet‐A/Fet‐A were significantly lower following a single bout of exercise. Further, reductions in serum Fet‐AAUC 24h Post Ex were correlated with a reduction in insulin resistance index. Together, this suggests that alterations in serum Fet‐A following a single bout of moderate‐intensity endurance exercise may play a role in the improvement of insulin sensitivity. Clinical Trial Registration NCT03478046; https://clinicaltrials.gov/ct2/show/NCT03478046.
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Affiliation(s)
- Guang Ren
- Department of Nutrition and Dietetics, Auburn University, Auburn, AL, USA
| | | | - Teayoun Kim
- Department of Nutrition and Dietetics, Auburn University, Auburn, AL, USA
| | | | | | - Suresh T Mathews
- Department of Nutrition and Dietetics, Samford University, Birmingham, AL, USA
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18
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Bourebaba L, Kornicka-Garbowska K, Al Naem M, Röcken M, Łyczko J, Marycz K. MSI-1436 improves EMS adipose derived progenitor stem cells in the course of adipogenic differentiation through modulation of ER stress, apoptosis, and oxidative stress. Stem Cell Res Ther 2021; 12:97. [PMID: 33536069 PMCID: PMC7860037 DOI: 10.1186/s13287-020-02102-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 12/14/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Protein tyrosine phosphatase 1B (PTP1B) is one of the major negative regulators of leptin and insulin signaling, and has been strongly implicated in insulin resistance development in the course of obesity and metabolic syndrome conditions; however, its exact role in controlling adipose tissue biogenesis is still poorly understood. OBJECTIVES This investigation aimed to elucidate whether selective inhibition of PTP1B using MSI-1436 compound may improve and restore the defective adipogenicity of ASCs isolated from EMS-affected horses. METHODS Equine ASC EMS cells were cultured under adipogenic conditions in the presence of PTP1B inhibitor and were subsequently tested for expression of the main adipogenic-related genes using RT-qPCR, changes in free fatty acid profiles by means of GC-MS technique, and for mitochondrial dynamics improvement through the analysis of mitochondrial transmembrane potential and oxidative stress. RESULTS Selective inhibition of PTP1B in equine ASC EMS cells improved substantially adipogenic differentiation by promoting cellular proliferation and normalizing expression of C/EBPalpha, PPARγ, and Adipoq markers that are critical for proper adipogenesis. Levels of secreted adiponectin and PPARγ were also shown to be increased in MSI-1436-conditioned cells, while total leptin levels markedly dropped under the same conditions. Moreover, MSI-1436 treatment enabled the regulation of metabolic-related transcripts that are crosslink to adipogenesis, namely Akt1, Akt2, and SHBG. The obtained results demonstrated also an obvious reduction in intracellular accumulated ROS and NO, as well as mitigated ER stress through the downregulation of Chop, Perk, Atf6, Ire1, and Xbp1 transcripts upon PTP1B inhibition. Furthermore, general fluctuations in FFA composition of all differentiated groups have been highlighted, where palmitic acid, palmitoleic acid, stearic acid, and linolelaidic acid that are known to be associated with the development of metabolic disorders were found to be normalized upon PTP1B inhibition during adipogenic differentiation. CONCLUSION The presented data provides the evidence that the use of PTP1B inhibitor may be successful in controlling and enhancing adipogenic differentiation of impaired equine ASCs affected by metabolic syndrome, and thus offers new insights for the management of obesity through the regulation of adipose tissue dynamics.
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Affiliation(s)
- Lynda Bourebaba
- Department of Experimental Biology, Wrocław University of Environmental and Life Sciences, Norwida 27B Street, A7 Building, 50-375, Wrocław, Poland
- International Institute of Translational Medicine, Malin, Jesionowa 11, 55-114, Wisznia Mała, Poland
| | - Katarzyna Kornicka-Garbowska
- Department of Experimental Biology, Wrocław University of Environmental and Life Sciences, Norwida 27B Street, A7 Building, 50-375, Wrocław, Poland
- International Institute of Translational Medicine, Malin, Jesionowa 11, 55-114, Wisznia Mała, Poland
| | - Mohamad Al Naem
- Faculty of Veterinary Medicine, Equine Clinic-Equine Surgery, Justus-Liebig-University, 35392, Giessen, Germany
| | - Michael Röcken
- Faculty of Veterinary Medicine, Equine Clinic-Equine Surgery, Justus-Liebig-University, 35392, Giessen, Germany
| | - Jacek Łyczko
- Department of Chemistry, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375, Wrocław, Poland
| | - Krzysztof Marycz
- Department of Experimental Biology, Wrocław University of Environmental and Life Sciences, Norwida 27B Street, A7 Building, 50-375, Wrocław, Poland.
- International Institute of Translational Medicine, Malin, Jesionowa 11, 55-114, Wisznia Mała, Poland.
- Faculty of Veterinary Medicine, Equine Clinic-Equine Surgery, Justus-Liebig-University, 35392, Giessen, Germany.
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Filippov MA, Tatarnikova OG, Pozdnyakova NV, Vorobyov VV. Inflammation/bioenergetics-associated neurodegenerative pathologies and concomitant diseases: a role of mitochondria targeted catalase and xanthophylls. Neural Regen Res 2021; 16:223-233. [PMID: 32859768 PMCID: PMC7896239 DOI: 10.4103/1673-5374.290878] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 02/23/2020] [Accepted: 03/23/2020] [Indexed: 02/07/2023] Open
Abstract
Various inflammatory stimuli are able to modify or even "re-program" the mitochondrial metabolism that results in generation of reactive oxygen species. In noncommunicable chronic diseases such as atherosclerosis and other cardiovascular pathologies, type 2 diabetes and metabolic syndrome, these modifications become systemic and are characterized by chronic inflammation and, in particular, "neuroinflammation" in the central nervous system. The processes associated with chronic inflammation are frequently grouped into "vicious circles" which are able to stimulate each other constantly amplifying the pathological events. These circles are evidently observed in Alzheimer's disease, atherosclerosis, type 2 diabetes, metabolic syndrome and, possibly, other associated pathologies. Furthermore, chronic inflammation in peripheral tissues is frequently concomitant to Alzheimer's disease. This is supposedly associated with some common genetic polymorphisms, for example, Apolipoprotein-E ε4 allele carriers with Alzheimer's disease can also develop atherosclerosis. Notably, in the transgenic mice expressing the recombinant mitochondria targeted catalase, that removes hydrogen peroxide from mitochondria, demonstrates the significant pathology amelioration and health improvements. In addition, the beneficial effects of some natural products from the xanthophyll family, astaxanthin and fucoxanthin, which are able to target the reactive oxygen species at cellular or mitochondrial membranes, have been demonstrated in both animal and human studies. We propose that the normalization of mitochondrial functions could play a key role in the treatment of neurodegenerative disorders and other noncommunicable diseases associated with chronic inflammation in ageing. Furthermore, some prospective drugs based on mitochondria targeted catalase or xanthophylls could be used as an effective treatment of these pathologies, especially at early stages of their development.
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Affiliation(s)
| | | | | | - Vasily V. Vorobyov
- Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Russia
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Matsumoto A, Osawa S, Arai T, Maejima Y, Otsuka H, Miyahara Y. Potentiometric Determination of Circulating Glycoproteins by Boronic Acid End-Functionalized Poly(ethylene glycol)-Modified Electrode. Bioconjug Chem 2021; 32:239-244. [PMID: 33480676 DOI: 10.1021/acs.bioconjchem.0c00657] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Despite tremendous complexity in glycan structure, sialic acid (SA) provides an analytically accessible index for glycosylation, owing to its uniquely anionic nature and glycan-chain terminal occupation. Taking advantage of boronic acid (BA) based SA-recognition chemistry, we here demonstrate a label-free, no enzymatic, potentiometric determination of fetuin, a blood-circulating glycoprotein implicated in physiological and various pathological states. A phenylboronic acid (PBA) ω-end-functionalized poly(ethylene glycol) (PEG) with an α-tethering unit bearing pendent alkyne groups was "grafted-to" a gold electrode modified with 11-azide-undecathiol by a copper-catalyzed azide-alkyne cycloaddition reaction. Using the electrode, fetuin was potentiometrically detectable with a μM-order-sensitivity that is comparable to what is found in blood-collected specimen. Our finding may have implications for developing a remarkably economic hemodiagnostic technology with ease of downsizing and mass production.
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Affiliation(s)
- Akira Matsumoto
- Institute of Biomaterials and Engineering, Tokyo Medical and Dental University, 2-3-10 Kanda-surugadai, Chiyada-ku, Tokyo 101-0062, Japan.,Kanagawa Institute of Industrial Science and Technology, 705-1 Shimoimaizumi, Ebina, Kanagawa 243-0435, Japan
| | - Shigehito Osawa
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Takahiro Arai
- Institute of Biomaterials and Engineering, Tokyo Medical and Dental University, 2-3-10 Kanda-surugadai, Chiyada-ku, Tokyo 101-0062, Japan
| | - Yukie Maejima
- Department of Chemical Science and Technology, Graduate School of Science, Tokyo University of Science, 1-3 kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Hidenori Otsuka
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.,Department of Chemical Science and Technology, Graduate School of Science, Tokyo University of Science, 1-3 kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.,Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.,Water Frontier Science & Technology Research Center, Research Institute for Science and Technology, Tokyo University of Science, 1-3 kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Yuji Miyahara
- Institute of Biomaterials and Engineering, Tokyo Medical and Dental University, 2-3-10 Kanda-surugadai, Chiyada-ku, Tokyo 101-0062, Japan
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Wang F, So KF, Xiao J, Wang H. Organ-organ communication: The liver's perspective. Am J Cancer Res 2021; 11:3317-3330. [PMID: 33537089 PMCID: PMC7847667 DOI: 10.7150/thno.55795] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/28/2020] [Indexed: 12/11/2022] Open
Abstract
Communication between organs participates in most physiological and pathological events. Owing to the importance of precise coordination among the liver and virtually all organs in the body for the maintenance of homeostasis, many hepatic disorders originate from impaired organ-organ communication, resulting in concomitant pathological phenotypes of distant organs. Hepatokines are proteins that are predominantly secreted from the liver, and many hepatokines and several signaling proteins have been linked to diseases of other organs, such as the heart, muscle, bone, and eyes. Although liver-centered interorgan communication has been proposed in both basic and clinical studies, to date, the regulatory mechanisms of hepatokine production, secretion, and reciprocation with signaling factors from other organs are obscure. Whether other hormones and cytokines are involved in such communication also warrants investigation. Herein, we summarize the current knowledge of organ-organ communication phenotypes in a variety of diseases and the possible involvement of hepatokines and/or other important signaling factors. This provides novel insight into the underlying roles and mechanisms of liver-originated signal transduction and, more importantly, the understanding of disease in an integrative view.
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Icer MA, Yıldıran H. Effects of fetuin-A with diverse functions and multiple mechanisms on human health. Clin Biochem 2020; 88:1-10. [PMID: 33245873 DOI: 10.1016/j.clinbiochem.2020.11.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 12/14/2022]
Abstract
Fetuin-A (Alfa 2-Heremans-Schmid) is a glycoprotein that is mainly synthesized by hepatocytes and then released into the bloodstream. While fetuin-A, a multifunctional protein, has inhibitory effects on health in the processes of calcification, mineralization, coronary artery calcification (CAC), and kidney stone formation by various mechanisms, it has such stimulatory effects as obesity, diabetes, and tumor progression processes. Fetuin-A produces these effects on the organism mainly by playing a role in the secretion levels of some inflammatory cytokines and exosomes, preventing unwanted calcification, inhibiting the autophosphorylation of tyrosine kinase, suppressing the release of adiponectin and peroxisome proliferator-activated receptor-γ (PPARγ), activating the toll-like receptor 4 (TLR-4), triggering the phosphatidylinositol 3 (PI3) kinase/Akt signaling pathway and cell proliferation, and mimicking the transforming growth factor-beta (TGF-β) receptor. In the present review, fetuin-A was examined in a wide perspective from the structure and release of fetuin-A to its effects on health.
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Affiliation(s)
- Mehmet Arif Icer
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, 06500 Ankara, Turkey.
| | - Hilal Yıldıran
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, 06500 Ankara, Turkey
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Ward K, Mulder E, Frings-Meuthen P, O'Gorman DJ, Cooper D. Fetuin-A as a Potential Biomarker of Metabolic Variability Following 60 Days of Bed Rest. Front Physiol 2020; 11:573581. [PMID: 33192574 PMCID: PMC7604312 DOI: 10.3389/fphys.2020.573581] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/17/2020] [Indexed: 12/13/2022] Open
Abstract
Background: Fetuin-A is a hepatokine linked to the development of insulin resistance. The purpose of this study was to determine if 60 days head-down-tilt (HDT) bed rest increased circulating fetuin-A and if it was linked to whole body insulin sensitivity (IS). Additionally, we examined whether reactive jump training (RJT) could alleviate the metabolic changes associated with bed rest. Methods: 23 young men (29 ± 6 years, 181 ± 6 cm, 77 ± 7 kg) were randomized to a control (CTRL, n = 11) or RJT group (JUMP, n = 12) and exposed to 60 days of bed rest. Before and after bed rest, body composition and V . O 2 p e a k were measured and an oral glucose tolerance test was performed to estimate IS. Circulating lipids and fetuin-A were measured in fasting serum. Results: Body weight, lean mass, and V . O 2 p e a k decreased in both groups following bed rest, with greater reductions in CTRL (p < 0.05). There was a main effect of time, but not the RJT intervention, for the increase in fetuin-A, triglycerides (TG), area under the curve for glucose (AUCG) and insulin (AUCI), and the decrease in Matsuda and tissue-specific IS (p < 0.05). Fetuin-A increased in participants who became less insulin sensitive (p = 0.019). In this subgroup, liver IS and adipose IS decreased (p < 0.05), while muscle IS was unchanged. In a subgroup, where IS did not decrease, fetuin-A did not change. Liver IS increased (p = 0.012), while muscle and adipose tissue IS remained unchanged. Conclusions: In this study, we report an increase in circulating fetuin-A following 60 days of bed rest, concomitant with reduced IS, which could not be mitigated by RJT. The amount of fetuin-A released from the liver may be an important determinant of changes in whole body IS. In this regard, it may also be a useful biomarker of individual variation due to inactivity or lifestyle interventions.
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Affiliation(s)
- Kiera Ward
- Faculty of Science and Health, Athlone Institute of Technology, Athlone, Ireland
| | - Edwin Mulder
- Department of Muscle and Bone Metabolism, Institute of Aerospace Medicine, German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, DLR), Cologne, Germany
| | - Petra Frings-Meuthen
- Department of Muscle and Bone Metabolism, Institute of Aerospace Medicine, German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, DLR), Cologne, Germany
| | - Donal J O'Gorman
- 3U Diabetes Partnership, School of Health and Human Performance, Dublin City University, Dublin, Ireland.,National Institute for Cellular Biotechnology, Dublin City University, Dublin, Ireland
| | - Diane Cooper
- Faculty of Science and Health, Athlone Institute of Technology, Athlone, Ireland
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Khadir A, Kavalakatt S, Madhu D, Devarajan S, Abubaker J, Al-Mulla F, Tiss A. Spexin as an indicator of beneficial effects of exercise in human obesity and diabetes. Sci Rep 2020; 10:10635. [PMID: 32606431 PMCID: PMC7327065 DOI: 10.1038/s41598-020-67624-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 05/07/2020] [Indexed: 12/20/2022] Open
Abstract
Spexin is a novel neuropeptide playing an emerging role in metabolic diseases such as obesity and diabetes via involvement in energy homeostasis and food intake. The present study investigated the effects of obesity and type 2 diabetes (T2D) on circulating levels of spexin and its modulation by physical exercise. Normal-weight (n = 50) and obese adults with and without T2D (n = 69 and n = 66, respectively) were enrolled in the study. A subgroup of obese participants (n = 47) underwent a supervised 3-month exercise programme. Plasma spexin levels were measured by ELISA and correlated with various markers. Plasma spexin levels decreased in obese participants with or without T2D compared with those of normal-weight participants (0.43 ± 0.11, 0.44 ± 0.12 and 0.61 ± 0.23 ng/ml, respectively; P < 0.001). Spexin levels negatively correlated with adiposity markers and blood pressure in the whole study population (P < 0.05). Multiple regression analysis revealed blood pressure was the greatest predictive determinant of plasma spexin levels, which significantly increased in response to physical exercise in obese participants without and with T2D (P < 0.05). Spexin levels significantly increased only in responders to exercise (those with increased oxygen consumption, VO2 max) with a concomitant improvement in metabolic profile. In conclusion, plasma spexin levels may be an indicator of response to physical exercise.
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Affiliation(s)
- Abdelkrim Khadir
- Biochemistry and Molecular Biology Department, Research Division, Dasman Diabetes Institute, P.O. Box1180, 15462, Dasman, Kuwait
| | - Sina Kavalakatt
- Biochemistry and Molecular Biology Department, Research Division, Dasman Diabetes Institute, P.O. Box1180, 15462, Dasman, Kuwait
| | - Dhanya Madhu
- Biochemistry and Molecular Biology Department, Research Division, Dasman Diabetes Institute, P.O. Box1180, 15462, Dasman, Kuwait
| | | | - Jehad Abubaker
- Biochemistry and Molecular Biology Department, Research Division, Dasman Diabetes Institute, P.O. Box1180, 15462, Dasman, Kuwait
| | - Fahd Al-Mulla
- Research Division, Dasman Diabetes Institute, Dasman, Kuwait
| | - Ali Tiss
- Biochemistry and Molecular Biology Department, Research Division, Dasman Diabetes Institute, P.O. Box1180, 15462, Dasman, Kuwait.
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Elieh Ali Komi D, Shafaghat F, Christian M. Crosstalk Between Mast Cells and Adipocytes in Physiologic and Pathologic Conditions. Clin Rev Allergy Immunol 2020; 58:388-400. [PMID: 32215785 PMCID: PMC7244609 DOI: 10.1007/s12016-020-08785-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Excessive fatty acids and glucose uptake support the infiltration of adipose tissue (AT) by a variety of immune cells including neutrophils, pro-inflammatory M1 macrophages, and mast cells (MCs). These cells promote inflammation by releasing pro-inflammatory mediators. The involvement of MCs in AT biology is supported by their accumulation in the AT of obese individuals along with significantly higher serum levels of MC-derived tryptase. AT-resident MCs under the influence of locally derived adipokines such as leptin become activated and release pro-inflammatory cytokines including TNFα that worsens the inflammatory state. MCs support angiogenesis in AT by releasing chymase and inducing preadipocyte differentiation and also the proliferation of adipocytes through 15-deoxy-delta PGJ2/PPARγ interaction. Additionally, they contribute to the remodeling of the AT extracellular matrix (ECM) and play a role in the recruitment and activation of leukocytes. MC degranulation has been linked to brown adipocyte activation, and evidence indicates an important link between MCs and the appearance of BRITE/beige adipocytes in white AT. Cell crosstalk between MCs and AT-resident cells, mainly adipocytes and immune cells, shows that these cells play a critical role in the regulation of AT homeostasis and inflammation.
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Affiliation(s)
- Daniel Elieh Ali Komi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farzaneh Shafaghat
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mark Christian
- School of Science and Technology, Nottingham, NG11 8NS, UK.
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26
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Liu S, Hu W, He Y, Li L, Liu H, Gao L, Yang G, Liao X. Serum Fetuin-A levels are increased and associated with insulin resistance in women with polycystic ovary syndrome. BMC Endocr Disord 2020; 20:67. [PMID: 32429902 PMCID: PMC7236448 DOI: 10.1186/s12902-020-0538-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 04/27/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Insulin resistance (IR) is a common characteristic of women with polycystic ovary syndrome (PCOS). It has been reported that circulating Fetuin-A levels were associated with IR and type 2 diabetes mellitus (T2DM). However, previous reports were inconsistent. METHODS Two hundred seven subjects were screened for PCOS according to the diagnostic guideline of the Rotterdam consensus criterion. Serum Fetuin-A levels were measured using an ELISA kit. An independent t-test or Nonparametric test was used to detect differences between PCOS and control groups. Spearman's correlation analysis was used to examine the association of the serum Fetuin-A with other parameters. RESULTS Our findings showed that circulating Fetuin-A concentration ranged from 196.6 to 418.2 μg/L for most women without PCOS (95%). Women with PCOS had higher circulating Fetuin-A levels than healthy women (437.9 ± 119.3 vs. 313.8 ± 60.5 μg/L; p < 0.01). Serum Fetuin-A was positively correlated with BMI, WHR, TG, TC, LDL-C, HOMA-IR, LH, T, and DHEA-S. Multivariate regression analysis showed that WHR, TG, HOMA-IR, and DHEA-S were independent predictors of the levels of circulating Fetuin-A. Binary logistic regression revealed that serum Fetuin-A was associated with the occurrence of PCOS. In addition, our ROC curve analysis found that the cutoff values for Fetuin-A to predict PCOS and IR were 366.3 and 412.6 μg/L. CONCLUSION Blood Fetuin-A may be a useful biomarker for screening women for PCOS and IR.
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Affiliation(s)
- Sha Liu
- Department of Endocrinology, the Affiliated Hospital, Zunyi Medical University, Zunyi, 563003 Guizhou China
| | - Wenjing Hu
- Chongqing Prevention and Treatment Hospital for Occupational Diseases, Chongqing, China
| | - Yirui He
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Ling Li
- Key Laboratory of Diagnostic Medicine (Ministry of Education) and Department of Clinical Biochemistry, College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016 China
| | - Hua Liu
- Department of Pediatrics, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS USA
| | - Lin Gao
- Department of Endocrinology, the Affiliated Hospital, Zunyi Medical University, Zunyi, 563003 Guizhou China
| | - Gangyi Yang
- Department of Endocrinology, the Affiliated Hospital, Zunyi Medical University, Zunyi, 563003 Guizhou China
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xin Liao
- Department of Endocrinology, the Affiliated Hospital, Zunyi Medical University, Zunyi, 563003 Guizhou China
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Soluble Epoxide Hydrolase 2 Expression Is Elevated in Obese Humans and Decreased by Physical Activity. Int J Mol Sci 2020; 21:ijms21062056. [PMID: 32192153 PMCID: PMC7139757 DOI: 10.3390/ijms21062056] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/26/2020] [Accepted: 02/28/2020] [Indexed: 12/11/2022] Open
Abstract
Epoxide hydrolase 2 (EPHX2) is an emerging therapeutic target in several immunometabolic disorders. EPHX2 metabolizes anti-inflammatory epoxyeicosatrienoic acids into pro-inflammatory diols. The contribution of EPHX2 activity to human obesity remains unexplored. We compared the expression of EPHX2 between lean and obese humans (n = 20 each) in subcutaneous adipose tissue (SAT) and peripheral blood mononuclear cells (PBMCs) using RT-PCR, Western Blot analysis, immunohistochemistry, and confocal microscopy before and after a 3-month physical activity regimen. We also assessed EPHX2 levels during preadipocyte differentiation in humans and mice. EPHX2 mRNA and protein expression were significantly elevated in obese subjects, with concomitant elevated endoplasmic reticulum (ER) stress components (the 78-kDa glucose-regulated protein; GRP78, and the Activating transcription factor 6; ATF6) and inflammatory markers (Tumor necrosis factor-α; TNFα, and Interleukin 6; IL6) as compared to controls (p < 0.05). EPHX2 mRNA levels strongly correlated with adiposity markers. In obese individuals, physical activity attenuated EPHX2 expression levels in both the SAT and PBMCs, with a parallel decrease in ER stress and inflammation markers. EPHX2 expression was also elevated during differentiation of both human primary and 3T3-L1 mouse preadipocytes. Mediators of cellular stress (palmitate, homocysteine, and macrophage culture medium) also increased EPHX2 expression in 3T3-L1 preadipocytes. Our findings suggest that EPHX2 upregulation is linked to ER stress in adiposity and that physical activity may attenuate metabolic stress by reducing EPHX2 expression.
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28
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Khadir A, Kavalakatt S, Madhu D, Tiss A. Fetuin-a expression profile in mouse and human adipose tissue. Lipids Health Dis 2020; 19:38. [PMID: 32164711 PMCID: PMC7068996 DOI: 10.1186/s12944-020-01225-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 03/09/2020] [Indexed: 02/06/2023] Open
Abstract
Fetuin-A (Fet-A) was one of the first hepatokines to be reportedly linked to metabolic diseases. Fet-A was also suggested to be an adipokine, but its expression in the adipose tissue remains debatable. Here we compared the expression of Fet-A between human and mice adipose tissue biopsies as well as among human subcutaneous tissue and visceral adipose tissue primary cells, and mouse 3 T3-L1 cells at various stages of differentiation. Fet-A was expressed in mice biopsies and cells but not in human biopsies and cells, except in visceral adipose tissue primary cells following differentiation. Although the marginal expression of Fet-A in human visceral adipose tissue, a major contribution of Fet-A expression in human adipose tissue to systemic Fet-A levels is discounted, but it could indicate specific local Fet-A action in the visceral adipose tissue.
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Affiliation(s)
- Abdelkrim Khadir
- Genetics and Bioinformatics department, Research Division, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Sina Kavalakatt
- Biochemistry and Molecular Biology department, Research Division, Dasman Diabetes Institute, P.O. Box1180, 15462, Dasman, Kuwait
| | - Dhanya Madhu
- Biochemistry and Molecular Biology department, Research Division, Dasman Diabetes Institute, P.O. Box1180, 15462, Dasman, Kuwait
| | - Ali Tiss
- Biochemistry and Molecular Biology department, Research Division, Dasman Diabetes Institute, P.O. Box1180, 15462, Dasman, Kuwait.
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29
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Fatima F, Ahsan N, Nasim A, Alam F. Association of fetuin-A with dyslipidemia and insulin resistance in type-II Diabetics of Pakistani population. Pak J Med Sci 2019; 36:64-68. [PMID: 32063933 PMCID: PMC6994863 DOI: 10.12669/pjms.36.2.1106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background & Objective: Fetuin-A, hepatokine is responsible for instigating insulin resistance by inhibiting tyrosine kinase receptors. Our objective was to investigate the relationship of fetuin-A with dyslipidemia and insulin resistance in type-II diabetics of Pakistani population. Methods: In this cross sectional study which was conducted at Basic Medical Sciences Institute, Jinnah Postgraduate Medical Centre, Karachi between October 2013 to March 2014, a total of 330 participants were selected and divided into two groups. Group-A (n = 165) normal healthy individual and Group-B (n = 165) Type-II diabetes mellitus mellitus with no comorbidities. Serum fetuin-A and insulin levels were determined by commercially prepared ELISA kits while fasting blood glucose (FBG) and lipid profile were performed by enzymatic kit method. Employing independent t-test, comparison of groups was done and correlation was achieved by using spearman correlation. Results: The results demonstrate a significant difference in mean values of fetuin-A, lipid profile, glucose, insulin and Homoeostasis Model Assessment of Insulin resistance (HOMA-IR) in type-II diabetics when compared to normal healthy individuals (p<0.01). A positive correlation was found between serum fetuin-A levels and FBG(r= 0.495, p< 0.001), insulin(r= 0.227, p< 0.001), HOMA-IR(r= 0.336, p<0.001, triglycerides(r= 0.197, p< 0.001) and LDL-cholesterol(r= 0.170, p= 0.002), while negative correlation with HDL-cholesterol(r= -0.251, p< 0.001). Conclusion: The study concludes that fetuin-A might be accountable for dyslipidemia and insulin resistance in type-II diabetes mellitus mellitus. So the high levels of Fetuin-A responsible for insulin resistance might alters endothelium and causes inflammation, vasoconstriction and thrombosis and ultimately atherosclerosis.
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Affiliation(s)
- Fasiha Fatima
- Dr. Fasiha Fatima, MBBS, MPhil, Assistant Professor, Department of Biochemistry, Karachi Institute of Medical Sciences, CMH Malir Cantt, Karachi, Pakistan
| | - Naveed Ahsan
- Dr. Naveed Ahsan, MBBS, MPhil, Assistant Professor, Department of Biochemistry, United Medical & Dental College, Karachi, Pakistan
| | - Aliya Nasim
- Dr. Aliya Nasim, MBBS, FCPS, Associate Professor, Department of Obstetrics & Gynecology, Liaquat College of Medicine & Dentistry, Darul Sehat Hospital Karachi, Pakistan
| | - Faiza Alam
- Dr. Faiza Alam, MBBS, MPhil, Senior Instructor, Department of Biological Sciences, Aga Khan University, Karachi, Pakistan
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Rosado M, Silva R, G Bexiga M, G Jones J, Manadas B, Anjo SI. Advances in biomarker detection: Alternative approaches for blood-based biomarker detection. Adv Clin Chem 2019; 92:141-199. [PMID: 31472753 DOI: 10.1016/bs.acc.2019.04.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In the clinical setting, a blood sample is typically the starting point for biomarker search and discovery. Mass spectrometry (MS) is a highly sensitive and informative method for characterizing a very wide range of metabolites and proteins and is therefore a potentially powerful tool for biomarker discovery. However, the physicochemical characteristics of blood coupled with very large ranges of protein and metabolite concentrations present a significant technical obstacle for resolving and quantifying putative biomarkers by MS. Blood fractionation procedures are being developed to reduce the proteome/metabolome complexity and concentration ranges, allowing a greater diversity of analytes, including those at very low concentrations, to be quantified. In this chapter, several strategies for enriching and/or isolating specific blood components are summarized, including methods for the analysis of low and high molecular weight compounds, usually neglected in this type of assays, extracellular vesicles, and peripheral blood mononuclear cells (PBMCs). For each method, relevant practical information is presented for effective implementation.
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Affiliation(s)
- Miguel Rosado
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Rafael Silva
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Mariana G Bexiga
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; INEB-Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - John G Jones
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Bruno Manadas
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Sandra I Anjo
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.
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31
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Jialal I, Pahwa R. Fetuin-A is also an adipokine. Lipids Health Dis 2019; 18:73. [PMID: 30917813 PMCID: PMC6437840 DOI: 10.1186/s12944-019-1021-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/19/2019] [Indexed: 12/22/2022] Open
Abstract
Fetuin-A (FetA), which impairs insulin action is considered classically as a hepatokine. In patients with Metabolic Syndrome without the confounding of diabetes or cardiovascular diseases, we showed significant increases in both circulating and subcutaneous adipose tissue secreted Fet-A. Furthermore we showed in mice models increase mRNA and protein following a high fat diet and in a model of metabolic syndrome. This work was recently confirmed by another group of investigators. Hence we propose that Fet-A be considered also as an adipokine.
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Affiliation(s)
- Ishwarlal Jialal
- California North-state University College of Medicine, 9700 West Taron Road, Elk Grove, CA, 95757, USA.
| | - Roma Pahwa
- National Cancer Institute, NIH, Bethesda, MD, USA
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32
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Kavalakatt S, Khadir A, Madhu D, Hammad M, Devarajan S, Abubaker J, Al-Mulla F, Tuomilehto J, Tiss A. Urocortin 3 Levels Are Impaired in Overweight Humans With and Without Type 2 Diabetes and Modulated by Exercise. Front Endocrinol (Lausanne) 2019; 10:762. [PMID: 31781037 PMCID: PMC6851015 DOI: 10.3389/fendo.2019.00762] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 10/21/2019] [Indexed: 12/26/2022] Open
Abstract
Urocortin3 (UCN3) regulates metabolic functions and is involved in cellular stress response. Although UCN3 is expressed in human adipose tissue, the association of UCN3 with obesity and diabetes remains unclear. This study investigated the effects of Type 2 diabetes (T2D) and increased body weight on the circulatory and subcutaneous adipose tissue (SAT) levels of UCN3 and assessed UCN3 modulation by a regular physical exercise. Normal-weight (n = 37) and overweight adults with and without T2D (n = 98 and n = 107, respectively) were enrolled in the study. A subset of the overweight subjects (n = 39 for each group) underwent a supervised 3-month exercise program combining both moderate intensity aerobic exercise and resistance training with treadmill. UCN3 levels in SAT were measured by immunofluorescence and RT-PCR. Circulatory UCN3 in plasma was assessed by ELISA and was correlated with various clinical and metabolic markers. Our data revealed that plasma UCN3 levels decreased in overweight subjects without T2D compared with normal-weight controls [median; 11.99 (0.78-86.07) and 6.27 (0.64-77.04), respectively; p < 0.001], whereas plasma UCN3 levels increased with concomitant T2D [median; 9.03 (0.77-104.92) p < 0.001]. UCN3 plasma levels were independently associated with glycemic index; fasting plasma glucose and hemoglobin A1c (r = 0.16 and r = 0.20, p < 0.05, respectively) and were significantly different between both overweight, with and without T2D, and normal-weight individuals (OR = 2.11 [1.84-4.11, 95% CI] and OR = 2.12 [1.59-3.10, 95% CI], p < 0.01, respectively). Conversely, the UCN3 patterns observed in SAT were opposite to those in circulation; UCN3 levels were significantly increased with body weight and decreased with T2D. After a 3-month supervised exercise protocol, UCN3 expression showed a significant reduction in SAT of both overweight groups (2.3 and 1.6-fold change; p < 0.01, respectively). In conclusion, UCN levels are differentially dysregulated in obesity in a tissue-dependent manner and can be mitigated by regular moderate physical exercise.
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Affiliation(s)
- Sina Kavalakatt
- Research Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Abdelkrim Khadir
- Research Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Dhanya Madhu
- Research Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Maha Hammad
- Research Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | | | - Jehad Abubaker
- Research Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fahd Al-Mulla
- Research Division, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Jaakko Tuomilehto
- Research Division, Dasman Diabetes Institute, Kuwait City, Kuwait
- Department of Public Health, University of Helsinki, Helsinki, Finland
- Department of Public Health Solutions, National Institute for Health and Welfare, Helsinki, Finland
| | - Ali Tiss
- Research Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- *Correspondence: Ali Tiss
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