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Alramah T, Cherian P, Al-Khairi I, Abu-Farha M, Thanaraj TA, Albatineh AN, Safadi F, Ali H, Abdul-Ghani M, Tuomilehto J, Koistinen HA, Al-Mulla F, Abubaker J. Evaluating the correlation of sclerostin levels with obesity and type 2 diabetes in a multiethnic population living in Kuwait. Front Endocrinol (Lausanne) 2024; 15:1392675. [PMID: 38711986 PMCID: PMC11070556 DOI: 10.3389/fendo.2024.1392675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/09/2024] [Indexed: 05/08/2024] Open
Abstract
Obesity and Type 2 Diabetes Mellitus (T2DM) are intricate metabolic disorders with a multifactorial etiology, often leading to a spectrum of complications. Recent research has highlighted the impact of these conditions on bone health, with a particular focus on the role of sclerostin (SOST), a protein molecule integral to bone metabolism. Elevated circulating levels of SOST have been observed in patients with T2DM compared to healthy individuals. This study aims to examine the circulating levels of SOST in a multiethnic population living in Kuwait and to elucidate the relationship between SOST levels, obesity, T2DM, and ethnic background. The study is a cross-sectional analysis of a large cohort of 2083 individuals living in Kuwait. The plasma level of SOST was measured using a bone panel multiplex assay. The study found a significant increase in SOST levels in individuals with T2DM (1008.3 pg/mL, IQR-648) compared to non-diabetic individuals (710.6 pg/mL, IQR-479). There was a significant gender difference in median SOST levels, with males exhibiting higher levels than females across various covariates (diabetes, IR, age, weight, and ethnicity). Notably, SOST levels varied significantly with ethnicity: Arabs (677.4 pg/mL, IQR-481.7), South Asians (914.6 pg/mL, IQR-515), and Southeast Asians (695.2 pg/mL, IQR-436.8). Furthermore, SOST levels showed a significant positive correlation with gender, age, waist circumference, systolic and diastolic blood pressure, fasting blood glucose, HbA1c, insulin, total cholesterol, triglycerides, HDL, LDL, ALT, and AST (p-Value ≥0.05). South Asian participants, who exhibited the highest SOST levels, demonstrated the most pronounced associations, even after adjusting for age, gender, BMI, and diabetes status (p-Value ≥0.05). The observed correlations of SOST with various clinical parameters suggest its significant role in the diabetic milieu, particularly pronounced in the South Asian population compared to other ethnic groups.
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Affiliation(s)
- Tahani Alramah
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, Kuwait
| | - Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, Kuwait
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, Kuwait
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, Kuwait
- Department of Translational Research, Dasman Diabetes Institute, Dasman, Kuwait
| | | | | | - Fayez Safadi
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, OH, United States
- Rebecca D. Considine Research Institute, Akron Children Hospital, Akron, OH, United States
| | - Hamad Ali
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Health Sciences Center, Kuwait University, Jabriya, Kuwait
| | - Muhammad Abdul-Ghani
- Department of Translational Research, Dasman Diabetes Institute, Dasman, Kuwait
- Division of Diabetes, University of Texas Health Science Center, San Antonio, TX, United States
| | - Jaakko Tuomilehto
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
- Saudi Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Heikki A. Koistinen
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
- Internal Medicine and Endocrinology, Minerva Foundation Institute for Medical Research, Helsinki, Finland
- Department of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Fahd Al-Mulla
- Department of Translational Research, Dasman Diabetes Institute, Dasman, Kuwait
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Dasman, Kuwait
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, Kuwait
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2
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Ghosh A, Leung YH, Yu J, Sladek R, Chénier I, Oppong AK, Peyot ML, Madiraju SRM, Al-Khairi I, Thanaraj TA, Abubaker J, Al-Mulla F, Prentki M, Abu-Farha M. Silencing ANGPTL8 reduces mouse preadipocyte differentiation and insulin signaling. Biochim Biophys Acta Mol Cell Biol Lipids 2024; 1869:159461. [PMID: 38272177 DOI: 10.1016/j.bbalip.2024.159461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/12/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024]
Abstract
ANGPTL8, expressed mainly in the liver and adipose tissue, regulates the activity of lipoprotein lipase (LPL) present in the extracellular space and triglyceride (TG) metabolism through its interaction with ANGPTL3 and ANGPTL4. Whether intracellular ANGPTL8 can also exert effects in tissues where it is expressed is uncertain. ANGPTL8 expression was low in preadipocytes and much increased during differentiation. To better understand the role of intracellular ANGPTL8 in adipocytes and assess whether it may play a role in adipocyte differentiation, we knocked down its expression in normal mouse subcutaneous preadipocytes. ANGPTL8 knockdown reduced adipocyte differentiation, cellular TG accumulation and also isoproterenol-stimulated lipolysis at day 7 of differentiation. RNA-Seq analysis of ANGPTL8 siRNA or control siRNA transfected SC preadipocytes on days 0, 2, 4 and 7 of differentiation showed that ANGPTL8 knockdown impeded the early (day 2) expression of adipogenic and insulin signaling genes, PPARγ, as well as genes related to extracellular matrix and NF-κB signaling. Insulin mediated Akt phosphorylation was reduced at an early stage during adipocyte differentiation. This study based on normal primary cells shows that ANGPTL8 has intracellular actions in addition to effects in the extracellular space, like modulating LPL activity. Preadipocyte ANGPTL8 expression modulates their differentiation possibly via changes in insulin signaling gene expression.
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Affiliation(s)
- Anindya Ghosh
- Departments of Nutrition, Biochemistry and Molecular Medicine, University of Montreal, and Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Yat Hei Leung
- Departments of Nutrition, Biochemistry and Molecular Medicine, University of Montreal, and Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Jeffrey Yu
- Department of Medicine, McGill University, Montréal, QC, Canada
| | - Robert Sladek
- Department of Medicine, McGill University, Montréal, QC, Canada
| | - Isabelle Chénier
- Departments of Nutrition, Biochemistry and Molecular Medicine, University of Montreal, and Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Abel K Oppong
- Departments of Nutrition, Biochemistry and Molecular Medicine, University of Montreal, and Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Marie-Line Peyot
- Departments of Nutrition, Biochemistry and Molecular Medicine, University of Montreal, and Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - S R Murthy Madiraju
- Departments of Nutrition, Biochemistry and Molecular Medicine, University of Montreal, and Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | | | | | | | | | - Marc Prentki
- Departments of Nutrition, Biochemistry and Molecular Medicine, University of Montreal, and Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada.
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3
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Al-Mulla F, Alhomaidah D, Abu-Farha M, Hasan A, Al-Khairi I, Nizam R, Alqabandi R, Alkandari H, Abubaker J. Early autoantibody screening for type 1 diabetes: a Kuwaiti perspective on the advantages of multiplexing chemiluminescent assays. Front Immunol 2023; 14:1273476. [PMID: 38094298 PMCID: PMC10716438 DOI: 10.3389/fimmu.2023.1273476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 11/14/2023] [Indexed: 12/18/2023] Open
Abstract
Type 1 diabetes (T1D) incidence has increased globally over the last decades, alongside other autoimmune diseases. Early screening of individuals at risk of developing T1D is vital to facilitate appropriate interventions and improve patient outcomes. This is particularly important to avoid life-threatening diabetic ketoacidosis and hospitalization associated with T1D diagnosis. Additionally, considering that new therapies have been developed for T1D, screening the population and individuals at high risk would be of great benefit. However, adopting such screening approaches may not be feasible due to limitations, such as cost, adaptation of such programs, and sample processing. In this perspective, we explore and highlight the use of multiplexing chemiluminescent assays for T1D screening and emphasize on their advantages in detecting multiple autoantibodies simultaneously, maximizing efficiency, and minimizing sample volume requirements. These assays could be extremely valuable for pediatric populations and large-scale screening initiatives, providing a cost-efficient solution with increased diagnostic accuracy and deeper insights into T1D pathogenesis. Eventually, the adoption of such screening methods can help transform T1D diagnosis, especially in countries with high T1D prevalence, such as Kuwait, which will contribute to the development of novel therapeutic interventions, positively impacting the lives of those affected by T1D and other autoimmune diseases.
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Affiliation(s)
- Fahd Al-Mulla
- Department of Translational Research, Dasman Diabetes Institute, Dasman, Kuwait
| | - Doha Alhomaidah
- Department of Population Health, Dasman Diabetes Institute, Dasman, Kuwait
| | - Mohamed Abu-Farha
- Department of Translational Research, Dasman Diabetes Institute, Dasman, Kuwait
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, Kuwait
| | - Amal Hasan
- Department of Translational Research, Dasman Diabetes Institute, Dasman, Kuwait
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, Kuwait
| | - Rasheeba Nizam
- Department of Genetic and Bioinformatics, Dasman Diabetes Institute, Dasman, Kuwait
| | - Rawan Alqabandi
- Special Services Department, Dasman Diabetes Institute, Dasman, Kuwait
| | - Hessa Alkandari
- Department of Population Health, Dasman Diabetes Institute, Dasman, Kuwait
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, Kuwait
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AlMajed HT, Abu-Farha M, Alshawaf E, Devarajan S, Alsairafi Z, Elhelaly A, Cherian P, Al-Khairi I, Ali H, Jose RM, Thanaraj TA, Al-Ozairi E, Al-Mulla F, Al Attar A, Abubaker J. Increased Levels of Circulating IGFBP4 and ANGPTL8 with a Prospective Role in Diabetic Nephropathy. Int J Mol Sci 2023; 24:14244. [PMID: 37762544 PMCID: PMC10531667 DOI: 10.3390/ijms241814244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/17/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
Diabetic nephropathy (DN) is a complicated condition related to type 2 diabetes mellitus (T2D). ANGPTL8 is a hepatic protein highlighted as a risk factor for DN in patients with T2D; additionally, recent evidence from DN studies supports the involvement of growth hormone/IGF/IGF-binding protein axis constituents. The potential link between ANGPTL8 and IGFBPs in DN has not been explored before. Here, we assessed changes in the circulating ANGPTL8 levels in patients with DN and its association with IGFBP-1, -3, and -4. Our data revealed a significant rise in circulating ANGPTL8 in people with DN, 4443.35 ± 396 ng/mL compared to 2059.73 ± 216 ng/mL in people with T2D (p < 0.001). Similarly, levels of IGFBP-3 and -4 were significantly higher in people with DN compared to the T2D group. Interestingly, the rise in ANGPTL8 levels correlated positively with IGFBP-4 levels in T2DM patients with DN (p < 0.001) and this significant correlation disappeared in T2DM patients without DN. It also correlated positively with serum creatinine and negatively with the estimated glomerular filtration rate (eGFR, All < 0.05). The area under the curve (AUC) on receiver operating characteristic (ROC) analysis of the combination of ANGPTL8 and IGFBP4 was 0.76 (0.69-0.84), p < 0.001, and the specificity was 85.9%. In conclusion, our results showed a significant increase in ANGPTL8 in patients with DN that correlated exclusively with IGFBP-4, implicating a potential role of both proteins in the pathophysiology of DN. Our findings highlight the significance of these biomarkers, suggesting them as promising diagnostic molecules for the detection of diabetic nephropathy.
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Affiliation(s)
- Hana Th. AlMajed
- Applied Health Science Department, College of Health Sciences, Kuwait 15462, Kuwait;
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait 15462, Kuwait; (E.A.); (P.C.); (I.A.-K.)
| | - Eman Alshawaf
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait 15462, Kuwait; (E.A.); (P.C.); (I.A.-K.)
| | - Sriraman Devarajan
- National Dasman Diabetes Biobank, Dasman Diabetes Institute, Kuwait 15462, Kuwait; (S.D.); (R.M.J.)
| | - Zahra Alsairafi
- Department of Pharmacy Practice, Faculty of Pharmacy, Kuwait 15462, Kuwait;
| | - Ashraf Elhelaly
- Clinical Laboratory, Amiri Hospital Kuwait, Kuwait 15462, Kuwait;
| | - Preethi Cherian
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait 15462, Kuwait; (E.A.); (P.C.); (I.A.-K.)
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait 15462, Kuwait; (E.A.); (P.C.); (I.A.-K.)
| | - Hamad Ali
- Genetics and Bioinformatics, Dasman Diabetes Institute, Kuwait 15462, Kuwait; (H.A.); (T.A.T.); (F.A.-M.)
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Health Sciences Center, Kuwait University, Kuwait 15462, Kuwait
| | - Rose Mol Jose
- National Dasman Diabetes Biobank, Dasman Diabetes Institute, Kuwait 15462, Kuwait; (S.D.); (R.M.J.)
| | | | - Ebaa Al-Ozairi
- Medical Division, Dasman Diabetes Institute, Kuwait 15462, Kuwait;
| | - Fahd Al-Mulla
- Genetics and Bioinformatics, Dasman Diabetes Institute, Kuwait 15462, Kuwait; (H.A.); (T.A.T.); (F.A.-M.)
| | - Abdulnabi Al Attar
- Diabetology Unit, Amiri Hospital, Dasman Diabetes Institute, Kuwait 15462, Kuwait;
| | - Jehad Abubaker
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait 15462, Kuwait; (E.A.); (P.C.); (I.A.-K.)
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5
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Abu-Farha M, Alatrach M, Abubaker J, Al-Khairi I, Cherian P, Agyin K, Abdelgani S, Norton L, Adams J, Al-Saeed D, Al-Ozairi E, DeFronzo RA, Al-Mulla F, Abdul-Ghani M. Plasma insulin is required for the increase in plasma angiopoietin-like protein 8 in response to nutrient ingestion. Diabetes Metab Res Rev 2023; 39:e3643. [PMID: 36988137 DOI: 10.1002/dmrr.3643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 02/28/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023]
Abstract
BACKGROUND Plasma levels of angiopoietin-like protein 8 (ANGPTL8) are regulated by feeding and they increase following glucose ingestion. Because both plasma glucose and insulin increase following food ingestion, we aimed to determine whether the increase in plasma insulin and glucose or both are responsible for the increase in ANGPTL8 levels. METHODS ANGPTL8 levels were measured in 30 subjects, 14 with impaired fasting glucose (IFG), and 16 with normal fasting glucose (NFG); the subjects received 75g glucose oral Glucose tolerance test (OGTT), multistep euglycaemic hyperinsulinemic clamp and hyperglycaemic clamp with pancreatic clamp. RESULTS Subjects with IFG had significantly higher ANGPTL8 than NGT subjects during the fasting state (p < 0.05). During the OGTT, plasma ANGPTL8 concentration increased by 62% above the fasting level (p < 0.0001), and the increase above fasting in ANGPTL8 levels was similar in NFG and IFG individuals. During the multistep insulin clamp, there was a dose-dependent increase in plasma ANGPTL8 concentration. During the 2-step hyperglycaemic clamp, the rise in plasma glucose concentration failed to cause any change in the plasma ANGPTL8 concentration from baseline. CONCLUSIONS In response to nutrient ingestion, ANGPTL8 level increased due to increased plasma insulin concentration, not to the rise in plasma glucose. The incremental increase above baseline in plasma ANGLPTL8 during OGTT was comparable between people with normal glucose tolerance and IFG.
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Affiliation(s)
- Mohamed Abu-Farha
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mariam Alatrach
- Division of Diabetes, University of Texas Health Science Center, San Antonio, Texas, USA
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Preethi Cherian
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Krisitn Agyin
- Division of Diabetes, University of Texas Health Science Center, San Antonio, Texas, USA
| | - Siham Abdelgani
- Division of Diabetes, University of Texas Health Science Center, San Antonio, Texas, USA
| | - Luke Norton
- Division of Diabetes, University of Texas Health Science Center, San Antonio, Texas, USA
| | - John Adams
- Division of Diabetes, University of Texas Health Science Center, San Antonio, Texas, USA
| | | | | | - Ralph A DeFronzo
- Division of Diabetes, University of Texas Health Science Center, San Antonio, Texas, USA
| | | | - Muhammad Abdul-Ghani
- Division of Diabetes, University of Texas Health Science Center, San Antonio, Texas, USA
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Al-Sabah S, Jamal MH, Al-Khaledi G, Dsouza C, AlOtaibi F, Al-Ali W, Cherian P, Al-Khairi I, Ali H, Abu-Farha M, Abubaker J, Al-Mulla F. Increased Glucagon Immunoreactivity in a Rat Model of Diet-induced Obesity following Sleeve Gastrectomy. Med Princ Pract 2023; 32:000533746. [PMID: 37634505 PMCID: PMC10659591 DOI: 10.1159/000533746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 08/22/2023] [Indexed: 08/29/2023] Open
Abstract
OBJECTIVE Bariatric surgery is currently the most effective treatment for obesity, and procedures such as Roux-en Y gastric bypass and sleeve gastrectomy (SG) also result in rapid improvements in insulin sensitivity and glucose tolerance. In addition, these procedures cause changes in the secretion of various gut-derived hormones. The role these hormones play in the mechanism of the beneficial effects of bariatric surgery is still debated, but nonetheless, their importance provides inspiration for novel obesity-targeted pharmacotherapies. METHODS Male Sprague Dawley rats were fed either regular chow or a cafeteria diet to induce obesity. A sub-group of the obese animals then underwent either sham surgery or SG. RESULTS Following a 4-week recovery period, SG rats weighed significantly less than obese or sham-operated rats. Improvements in glucose tolerance and insulin sensitivity also occurred in the SG group, but these were not always statistically significant. We measured the intracellular lipid content of liver samples and found that obese rats showed signs of non-alcoholic fatty liver disease, which were significantly ameliorated by SG. There were significantly higher glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) responses to a standard mixed meal in the SG group, as well as paradoxically higher glucagon secretion. CONCLUSION These data highlight the need for more specific anti-glucagon antibodies to characterize the changes in proglucagon-derived peptide concentrations that occur following SG. Further studies are required to determine whether these peptides contribute to the therapeutic effects of SG.
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Affiliation(s)
- Suleiman Al-Sabah
- Department of Pharmacology and Toxicology, College of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Mohammad H. Jamal
- Department of Surgery, College of Medicine, Kuwait University, Kuwait City, Kuwait
- Department of Organ Transplant, College of Medicine, Kuwait City, Kuwait
| | - Ghanim Al-Khaledi
- Department of Pharmacology and Toxicology, College of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Carol Dsouza
- Department of Surgery, College of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Fatemah AlOtaibi
- Department of Surgery, College of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Waleed Al-Ali
- Department of Pathology, College of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Hamad Ali
- Department of Medical Laboratory Sciences, College of Allied Health Sciences, Kuwait University, Kuwait City, Kuwait
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fahd Al-Mulla
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
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7
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Leentjens M, Bosschieter PFN, Al-Terki A, de Raaff CAL, de Vries CEE, Hammad M, Thanaraj TA, Al-Khairi I, Cherian P, Channanath A, Abu-Farha M, de Vries N, Abubaker J. The association between biomarker angiopoietin-like protein five and obstructive sleep apnea in patients undergoing bariatric surgery. Sleep Breath 2023; 27:1443-1454. [PMID: 36449218 DOI: 10.1007/s11325-022-02736-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 12/05/2022]
Abstract
PURPOSE Obstructive sleep apnea (OSA) is prevalent in the bariatric population. OSA should be recognized in patients undergoing bariatric surgery preoperatively to prevent peri- and post-operative complications. Lipid metabolism-related biomarkers are associated with OSA. Triglyceride metabolism is, among others, regulated by angiopoietin-like protein five (ANGPTL5). We aimed to evaluate the level of ANGPTL5 in patients with OSA of different severity levels before and after bariatric surgery. METHODS We performed a single-center prospective cohort study including a consecutive series of patients who underwent bariatric surgery. We collected the clinical data, polysomnography (PSG) or polygraphy (PG) parameters, and plasma derived via venipuncture before and 6 to 12 months after surgery. Lipid profile, glucose levels, and ANGPTL5 levels were assessed. ANGPTL5 levels were measured using an enzyme-linked immunosorbent assay (ELISA). RESULTS The study included 88 patients for analysis. The patients were divided into two subgroups: no or mild OSA (apnea-hypopnea index (AHI) < 15 events/hour, n = 57) and moderate-to-severe OSA (AHI ≥ 15 events/hour, n = 31). The ANGPTL5 level was higher in the moderate-to-severe OSA group (20.5 [15.6, 26.5] ng/mL) compared to the no or mild OSA group (16.3 [12.5, 19.4] ng/mL) (p = 0.008). A significant positive correlation was observed between ANGPTL5 and AHI (ρ = 0.256, p = 0.017), apnea index (AI) (ρ = 0.318, p = 0.003), and triglyceride levels (ρ = 0.240, p = 0.025). ANGPTL5 levels were reduced significantly after bariatric surgery in both moderate-to-severe OSA (15.6 [10.3, 18.7] ng/mL) and no or mild OSA (13.4 [9.2, 15.8] ng/mL) groups, though to a lower level in the group without or mild OSA. Post-surgery, the significant positive correlation between ANGPTL5 and AHI (ρ = 0.210, p = 0.047), AI (ρ = 0.230, p = 0.034), and triglyceride (ρ = 0.397, p < 0.001) remained. CONCLUSION The data showed increased levels of ANGPTL5 in patients with moderate-to-severe OSA. Both AHI and ANGPTL5 levels decreased significantly after bariatric surgery. We also report an association between ANGPTL5 levels and OSA severity.
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Affiliation(s)
- M Leentjens
- Department of Otorhinolaryngology - Head and Neck Surgery, OLVG, Amsterdam, the Netherlands
| | - P F N Bosschieter
- Department of Otorhinolaryngology - Head and Neck Surgery, OLVG, Amsterdam, the Netherlands
| | - Abdulmohsen Al-Terki
- Department of Otolaryngology - Head & Neck Surgery, Medical Division, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - C A L de Raaff
- Department of Surgery, Amsterdam UMC, Amsterdam, the Netherlands
| | - C E E de Vries
- Department of Surgery, Reinier de Graaf Gasthuis, Delft, the Netherlands
| | - Maha Hammad
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, P.O. Box 1180, 15462, Kuwait City, Kuwait
| | | | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, P.O. Box 1180, 15462, Kuwait City, Kuwait
| | - Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, P.O. Box 1180, 15462, Kuwait City, Kuwait
| | - Arshad Channanath
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, P.O. Box 1180, 15462, Kuwait City, Kuwait.
| | - N de Vries
- Department of Otorhinolaryngology - Head and Neck Surgery, OLVG, Amsterdam, the Netherlands
- Department of Oral Kinesiology, ACTA, MOVE Research Institute Amsterdam, University of Amsterdam and VU University Amsterdam, Amsterdam, the Netherlands
- Faculty of Medicine and Health Sciences, Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman, P.O. Box 1180, 15462, Kuwait City, Kuwait
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8
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Jamal MH, AlOtaibi F, Dsouza C, Al-Sabah S, Al-Khaledi G, Al-Ali W, Ali H, Cherian P, Al-Khairi I, Devarajan S, Abu-Farha M, Al-Mulla F, Abubaker J. Changes in the expression of meteorin-like (METRNL), irisin (FNDC5), and uncoupling proteins (UCPs) after bariatric surgery. Obesity (Silver Spring) 2022; 30:1629-1638. [PMID: 35844163 DOI: 10.1002/oby.23473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/15/2022] [Accepted: 04/19/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Bariatric surgery is currently the most effective treatment for severe obesity. This study aims to investigate the changes in expression levels of meteorin-like protein (METRNL), irisin (FNDC5), and uncoupling proteins (UCP) 1/2/3 following bariatric surgery to understand their involvement in enhancing metabolism after surgery. METHOD A total of 40 participants were enrolled in this interventional study, 20 with obesity BMI ≥ 35 kg/m2 and 20 with BMI ≤ 25 kg/m2 . Bariatric surgery (laparoscopic sleeve gastrectomy and Roux-en-Y gastric bypass) was performed. The levels of various molecules of interest were analyzed before and after surgery. RESULTS Gene expression analysis revealed significantly higher levels of METRNL, UCP1, and UCP3 in individuals with obesity when compared with healthy individuals before surgery (p < 0.05). Gene expression levels of METRNL and UCP2 showed a significant increase after bariatric surgery (p < 0.05). METRNL plasma level was significantly higher in individuals with obesity before surgery (mean [SEM], 55,222.6 [1,421.1] pg/mL, p = 0.0319), as well as at 6 and 12 months (57,537.3 [1,303.9] pg/mL, p = 0.0005; 59,334.9 [1,214.3] pg/mL, p < 0.0001) after surgery. CONCLUSION The changes in the levels of various molecules of interest support their possible involvement in the inflammatory and thermogenic responses following bariatric surgery.
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Affiliation(s)
- Mohammad H Jamal
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
- Department of Organ Transplant, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
- Department of Surgery, Jaber Al-Ahmed Hospital, Kuwait City, Kuwait
| | - Fatemah AlOtaibi
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
| | - Carol Dsouza
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
| | - Suleiman Al-Sabah
- Department of Pharmacology and Toxicology, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
| | - Ghanim Al-Khaledi
- Department of Pharmacology and Toxicology, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
| | - Waleed Al-Ali
- Department of Pathology, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
| | - Hamad Ali
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Sriraman Devarajan
- Special Service Facility, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fahd Al-Mulla
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
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9
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Ali H, Abu-Farha M, Alshawaf E, Devarajan S, Bahbahani Y, Al-Khairi I, Cherian P, Alsairafi Z, Vijayan V, Al-Mulla F, Al Attar A, Abubaker J. Association of significantly elevated plasma levels of NGAL and IGFBP4 in patients with diabetic nephropathy. BMC Nephrol 2022; 23:64. [PMID: 35148702 PMCID: PMC8840773 DOI: 10.1186/s12882-022-02692-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 02/02/2022] [Indexed: 11/17/2022] Open
Abstract
Background Diabetic nephropathy (DN) is a type of progressive kidney disease affecting approximately 40% of patients with diabetes. Current DN diagnostic criteria predominantly rely on albuminuria and serum creatinine (sCr) levels. However, the specificity and reliability of both markers are limited. Hence, reliable biomarkers are required for early diagnosis to effectively manage DN progression. Methods In this study, a cohort of 159 individuals were clinically evaluated and the plasma levels of NGAL, IGFBP-1, IGFBP-3, and IGFBP-4 were determined using Multiplexing Assays. Additionally, the association between the plasma levels of NGAL, IGFBP-1, IGFBP-3, and IGFBP-4 in patients with DN were compared to those in patients with T2D without kidney disease and control participants. Results Circulating level of NGAL were significantly higher in people with DN compared to people with T2D and non-diabetic groups (92.76 ± 7.5, 57.22 ± 8.7, and 52.47 ± 2.9 mg/L, respectively; p < 0.0001). IGFBP-4 showed a similar pattern, where it was highest in people with DN (795.61 ng/ml ±130.7) compared to T2D and non-diabetic people (374.56 ng/ml ±86.8, 273.06 ng/ml ±27.8 respectively, ANOVA p < 0.01). The data from this study shows a significant positive correlation between NGAL and IGFBP-4 in people with DN (ρ = .620, p < 0.005). IGFBP-4 also correlated positively with creatinine level and negatively with eGFR, in people with DN supporting its involvement in DN. Conclusion The data from this study shows a parallel increase in the plasma levels of NGAL and IGFBP-4 in DN. This highlights the potential to use these markers for early diagnosis of DN. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-022-02692-z.
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Affiliation(s)
- Hamad Ali
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Health Sciences Center, Kuwait University, Kuwait City, Kuwait.,Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Eman Alshawaf
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Sriraman Devarajan
- National Dasman Diabetes Biobank, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Yousif Bahbahani
- Medical Division, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Zahra Alsairafi
- Department of Pharmacy Practice, Faculty of Pharmacy, Health Sciences Center, Kuwait University, Kuwait City, Kuwait
| | - Vidya Vijayan
- National Dasman Diabetes Biobank, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Fahd Al-Mulla
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Abdulnabi Al Attar
- Medical Division, Dasman Diabetes Institute (DDI), Dasman, Kuwait.,Diabetology Unit, Amiri Hospital, Ministry of Health, Kuwait City, Kuwait
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman, Kuwait.
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10
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Ali H, Abu-Farha M, Hammad MM, Devarajan S, Bahbahani Y, Al-Khairi I, Cherian P, Alsairafi Z, Vijayan V, Al-Mulla F, Attar AA, Abubaker J. Potential Role of N-Cadherin in Diagnosis and Prognosis of Diabetic Nephropathy. Front Endocrinol (Lausanne) 2022; 13:882700. [PMID: 35712247 PMCID: PMC9194471 DOI: 10.3389/fendo.2022.882700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/20/2022] [Indexed: 11/13/2022] Open
Abstract
Diabetic nephropathy (DN) is a serious complication of diabetes affecting about half the people with diabetes and the leading cause of end stage renal disease (ESRD). Albuminuria and creatinine levels are currently the classic markers for the diagnosis of DN. However, many shortcomings are arising from the use of these markers mainly because they are not specific to DN and their levels are altered by multiple non-pathological factors. Therefore, the aim of this study is to identify better markers for the accurate and early diagnosis of DN. The study was performed on 159 subjects including 42 control subjects, 50 T2D without DN and 67 T2D subjects with DN. Our data show that circulating N-cadherin levels are significantly higher in the diabetic patients who are diagnosed with DN (842.6 ± 98.6 mg/l) compared to the diabetic patients who do not have DN (470.8 ± 111.5 mg/l) and the non-diabetic control group (412.6 ± 41.8 mg/l). We also report that this increase occurs early during the developmental stages of the disease since N-cadherin levels are significantly elevated in the microalbuminuric patients when compared to the healthy control group. In addition, we show a significant correlation between N-cadherin levels and renal markers including creatinine (in serum and urine), urea and eGFR in all the diabetic patients. In conclusion, our study presents N-cadherin as a novel marker for diabetic nephropathy that can be used as a valuable prognostic and diagnostic tool to slow down or even inhibit ESRD.
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Affiliation(s)
- Hamad Ali
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Health Sciences Center, Kuwait University, Jabriya, Kuwait
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Maha M. Hammad
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Sriraman Devarajan
- National Dasman Diabetes Biobank, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Yousif Bahbahani
- Medical Division, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Zahra Alsairafi
- Department of Pharmacy Practice, Faculty of Pharmacy, Health Sciences Center, Kuwait University, Jabriya, Kuwait
| | - Vidya Vijayan
- National Dasman Diabetes Biobank, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Fahd Al-Mulla
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), Dasman, Kuwait
| | - Abdulnabi Al Attar
- Medical Division, Dasman Diabetes Institute (DDI), Dasman, Kuwait
- Diabetology Unit, Amiri Hospital, Ministry of Health, Kuwait City, Kuwait
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman, Kuwait
- *Correspondence: Jehad Abubaker,
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11
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Leentjens M, Alterki A, Abu-Farha M, Bosschieter PFN, de Raaff CAL, de Vries CEE, Al Shawaf E, Thanaraj TA, Al-Khairi I, Cherian P, Channanath A, Kavalakatt S, van Wagensveld BA, de Vries N, Abubaker J. Increased plasma ANGPTL7 levels with increased obstructive sleep apnea severity. Front Endocrinol (Lausanne) 2022; 13:922425. [PMID: 36017324 PMCID: PMC9396619 DOI: 10.3389/fendo.2022.922425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 07/14/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Weight-loss surgery is one of the recommended methods for treating obstructive sleep apnea (OSA) in obese patients. While weight reduction is critical to relieve symptoms of OSA, the biochemical factors involved in post-surgery improvement are still unknown. We aimed to explore the link between ANGPTL7 and OSA in patients with different OSA severity. Furthermore, we examined the effect of treating OSA with bariatric surgery on ANGPTL7 level. METHODS We quantified levels of circulating ANGPTL7 in fasting plasma and adipose tissue samples of 88 participants before and after bariatric surgery. Confocal microscopy analyses were also performed to assess the ANGPTL7 expression in subcutaneous white adipose tissue biopsies obtained from people with moderate-to-severe OSA compared to those with none or mild OSA. The study involved 57 individuals with none or mild OSA and 31 patients with moderate-to-severe OSA. RESULTS Levels of circulating ANGPTL7 were significantly higher in people with moderate-to-severe OSA (1440 ± 1310 pg/ml) compared to the none or mild OSA group (734 ± 904 pg/ml, p = 0.01). The increase in ANGPTL7 correlated significantly and positively with the apnea-hypopnea index (AHI, r = .226, p = .037), and AHI-supine (r = .266, p = .019) in participants with moderate-to-severe OSA. Multivariate logistic regression analysis demonstrated an association between ANGPTL7 and OSA severity (log2 ANGPTL7; OR =1.24, p = 0.024). ANGPTL7 levels exhibited significant positive correlations with the levels of TG and oxLDL (p-value = 0.002 and 0.01 respectively). Bariatric surgery reduced the levels of both ANGPTL7 and AHI significantly. CONCLUSION Here we report significantly increased levels of ANGPTL7 both in the circulation and in adipose tissue of patients with OSA, which concurred with increased inflammation and OSA severity. Levels of ANGPTL7 decreased significantly as OSA showed a significant improvement post-surgery supporting a potential role for ANGPTL7 in either OSA progression or a role in an OSA-related mechanism.
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Affiliation(s)
- M. Leentjens
- Department of Otorhinolaryngology - Head and Neck Surgery, Onze Lieve Vrouwe Gasthuis (OLVG) Hospital, Amsterdam, Netherlands
- *Correspondence: M. Leentjens, ; Jehad Abubaker,
| | - Abdulmohsen Alterki
- Department of Otolaryngology - Head and Neck Surgery, Zain and Al Sabah Hospitals and Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - P. F. N. Bosschieter
- Department of Otorhinolaryngology - Head and Neck Surgery, Onze Lieve Vrouwe Gasthuis (OLVG) Hospital, Amsterdam, Netherlands
| | - CAL. de Raaff
- Department of Surgery, Amsterdam University Medical Center (UMC), Amsterdam, Netherlands
| | - CEE. de Vries
- Department of Surgery, Reinier de Graaf Gasthuis, Delft, Netherlands
| | - Eman Al Shawaf
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | | | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Preethi Cherian
- Department of Otolaryngology - Head and Neck Surgery, Zain and Al Sabah Hospitals and Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Arshad Channanath
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Dasman, Kuwait
| | - Sina Kavalakatt
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - B. A. van Wagensveld
- Obesity Department, New Medical Centre (NMC) Royal Hospital Khalifa City, Abu Dhabi, United Arab Emirates
| | - N. de Vries
- Department of Otorhinolaryngology - Head and Neck Surgery, Onze Lieve Vrouwe Gasthuis (OLVG) Hospital, Amsterdam, Netherlands
- Department of Oral Kinesiology, Academic Centre for Dentistry in Amsterdam (ACTA), Move Research Institute Amsterdam, University of Amsterdam and Vrije University (VU) University Amsterdam, Amsterdam, Netherlands
- Department of Otorhinolaryngology - Head and Neck Surgery, Faculty of Medicine and Health Sciences, Antwerp University Hospital, Antwerp, Belgium
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
- *Correspondence: M. Leentjens, ; Jehad Abubaker,
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12
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Shehab M, Alrashed F, Alfadhli A, Alotaibi K, Alsahli A, Mohammad H, Cherian P, Al-Khairi I, Alphonse Thanaraj T, Channanath A, Ali H, Abu-Farha M, Abubaker J, Al-Mulla F. Serological Response to BNT162b2 and ChAdOx1 nCoV-19 Vaccines in Patients with Inflammatory Bowel Disease on Biologic Therapies. Vaccines (Basel) 2021; 9:1471. [PMID: 34960217 PMCID: PMC8705736 DOI: 10.3390/vaccines9121471] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/30/2021] [Accepted: 12/07/2021] [Indexed: 11/16/2022] Open
Abstract
Introduction: The immunogenicity of SARS-CoV-2 vaccines in patients with inflammatory bowel disease (IBD) on biologic therapies is not well studied. The goal of this study was to measure the serological response to BNT162b2 and ChAdOx1 nCoV-19 vaccines in patients with IBD receiving different biologic therapies. Methods: We performed a multi-center prospective study between 1 August 2021 and 15 September 2021. We measured the seropositivity of SARS-CoV-2 antibodies (SARS-CoV-2 IgG) and neutralizing antibody concentrations in patients with IBD receiving biologic therapies 4-10 weeks after their second dose or 3-6 weeks after their first dose of BNT162b2 or ChAdOx1 nCoV-19 vaccines. Results: A total of 126 patients were enrolled (mean age, 31 years; 60% male; 71% Crohn's disease, 29% ulcerative colitis). Of these, 92 patients were vaccinated with the BNT162b2 vaccine (73%) and 34 patients with the ChAdOx1 nCoV-19 vaccine (27%). In patients being treated with infliximab and adalimumab, the proportion of patients who achieved positive anti-SARS-CoV-2 IgG antibody levels after receiving two doses of the vaccine were 44 out of 59 patients (74.5%) and 13 out of 16 patients (81.2%), respectively. In contrast, of those receiving ustekinumab and vedolizumab, the proportion of patients who achieved positive anti-SARS-CoV-2 IgG antibody levels after receiving two doses of the vaccine were 100% and 92.8%, respectively. In patients receiving infliximab and adalimumab, the proportion of patients who had positive anti-SARS-CoV-2 neutralizing antibody levels after two-dose vaccination was 40 out of 59 patients (67.7%) and 14 out 16 patients (87.5%), respectively. On the other hand, the proportion of patients who had positive anti-SARS-CoV-2 neutralizing antibody levels were 12 out of 13 patients (92.3%) and 13 out of 14 patients (92.8%) in patients receiving ustekinumab and vedolizumab, respectively. Conclusions: The majority of patients with IBD who were on infliximab, adalimumab, and vedolizumab seroconverted after two doses of SARS-CoV-2 vaccination. All patients on ustekinumab seroconverted after two doses of SARS-CoV-2 vaccine. The BNT162b2 and ChAdOx1 nCoV-19 SARS-CoV-2 vaccines are both likely to be effective after two doses in patients with IBD on biologics. Larger follow-up studies are needed to evaluate if decay of antibodies occurs over time.
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Affiliation(s)
- Mohammad Shehab
- Division of Gastroenterology, Department of Internal Medicine, Mubarak Alkabeer University Hospital, Kuwait University, Aljabreyah 47060, Kuwait; (A.A.); (K.A.); (A.A.); (H.M.)
| | - Fatema Alrashed
- Department of Pharmacy Practice, Faculty of Pharmacy, Health Sciences Center (HSC), Kuwait University, Jabriya 13110, Kuwait;
| | - Ahmad Alfadhli
- Division of Gastroenterology, Department of Internal Medicine, Mubarak Alkabeer University Hospital, Kuwait University, Aljabreyah 47060, Kuwait; (A.A.); (K.A.); (A.A.); (H.M.)
| | - Khazna Alotaibi
- Division of Gastroenterology, Department of Internal Medicine, Mubarak Alkabeer University Hospital, Kuwait University, Aljabreyah 47060, Kuwait; (A.A.); (K.A.); (A.A.); (H.M.)
| | - Abdullah Alsahli
- Division of Gastroenterology, Department of Internal Medicine, Mubarak Alkabeer University Hospital, Kuwait University, Aljabreyah 47060, Kuwait; (A.A.); (K.A.); (A.A.); (H.M.)
| | - Hussain Mohammad
- Division of Gastroenterology, Department of Internal Medicine, Mubarak Alkabeer University Hospital, Kuwait University, Aljabreyah 47060, Kuwait; (A.A.); (K.A.); (A.A.); (H.M.)
| | - Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman 15462, Kuwait; (P.C.); (I.A.-K.); (M.A.-F.); (J.A.)
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman 15462, Kuwait; (P.C.); (I.A.-K.); (M.A.-F.); (J.A.)
| | - Thangavel Alphonse Thanaraj
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), Dasman 15462, Kuwait; (T.A.T.); (A.C.); (H.A.)
| | - Arshad Channanath
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), Dasman 15462, Kuwait; (T.A.T.); (A.C.); (H.A.)
| | - Hamad Ali
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), Dasman 15462, Kuwait; (T.A.T.); (A.C.); (H.A.)
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Health Sciences Center (HSC), Kuwait University, Jabriya 13110, Kuwait
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman 15462, Kuwait; (P.C.); (I.A.-K.); (M.A.-F.); (J.A.)
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute (DDI), Dasman 15462, Kuwait; (P.C.); (I.A.-K.); (M.A.-F.); (J.A.)
| | - Fahd Al-Mulla
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute (DDI), Dasman 15462, Kuwait; (T.A.T.); (A.C.); (H.A.)
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13
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Arefanian H, Al-Khairi I, Khalaf NA, Cherian P, Kavalakatt S, Madhu D, Mathur A, Qaddoumi MG, Al-Mulla F, Abubaker J, Abu-Farha M. Increased expression level of ANGPTL8 in white adipose tissue under acute and chronic cold treatment. Lipids Health Dis 2021; 20:117. [PMID: 34565390 PMCID: PMC8466641 DOI: 10.1186/s12944-021-01547-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/06/2021] [Indexed: 02/06/2023] Open
Abstract
Background Angiopoietin-like proteins (ANGPTL), primarily 3, 4, and 8, play a major role in maintaining energy homeostasis by regulating triglyceride metabolism. This study evaluated the level of ANGPTL3, 4, and 8 in the liver, brown adipose tissue (BAT), and subcutaneous white adipose tissue (SAT) of mice maintained under acute and chronic cold conditions. Methods C57BL/6J mice were exposed to cold temperature (4 °C) for 10 days with food provided ad libitum. Animal tissues were harvested at Day 0 (Control group, n = 5) and Days 1, 3, 5, and 10 (cold treatment groups, n = 10 per group). The expression levels of various genes were measured in the liver, SAT, and BAT. ANGPTL3, 4, and 8 expressions were measured in the liver. ANGPTL4, 8, and genes involved in browning and lipid metabolism [uncoupling protein 1 (UCP1), lipoprotein lipase (LPL), and adipose triglyceride lipase (ATGL)] were measured in SAT and BAT. Western blotting (WB) analysis and immunohistochemistry (IHC) were performed to confirm ANGPTL8 expression in these tissues. Results The expressions of ANGPTL3 and 8 mRNA were significantly reduced in mouse liver tissues after cold treatment (P < 0.05); however, the expression of ANGPTL4 was not significantly altered. In BAT, ANGPTL8 expression was unchanged after cold treatment, whereas ANGPTL4 expression was significantly reduced (P < 0.05). ANGPTL4 levels were also significantly reduced in SAT, whereas ANGPTL8 gene expression exhibited over a 5-fold increase. Similarly, UCP1 gene expression was also significantly increased in SAT. The mRNA levels of LPL and ATGL showed an initial increase followed by a gradual decrease with an increase in the days of cold exposure. ANGPTL8 protein overexpression was further confirmed by WB and IHC. Conclusions This study shows that exposure to acute and chronic cold treatment results in the differential expression of ANGPTL proteins in the liver and adipose tissues (SAT and BAT). The results show a significant reduction in ANGPTL4 in BAT, which is linked to improved thermogenesis in response to acute cold exposure. ANGPTL8 was activated under acute and chronic cold conditions in SAT, suggesting that it is involved in regulating lipolysis and enhancing SAT browning. Supplementary Information The online version contains supplementary material available at 10.1186/s12944-021-01547-0.
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Affiliation(s)
- Hossein Arefanian
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman, Kuwait
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Dasman, Kuwait
| | - Nermeen Abu Khalaf
- Animal and Imaging Core Facilities, Dasman Diabetes Institute, Dasman, Kuwait
| | - Preethi Cherian
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Dasman, Kuwait
| | - Sina Kavalakatt
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Dasman, Kuwait
| | - Dhanya Madhu
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Dasman, Kuwait
| | - Aditi Mathur
- Special Service Facility, Dasman Diabetes Institute, Dasman, Kuwait
| | - Mohamed G Qaddoumi
- Pharmacology and Therapeutics Department, Faculty of Pharmacy, Kuwait University, Kuwait City, Kuwait
| | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Dasman, Kuwait
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Dasman, Kuwait. .,Biochemistry & Molecular Biology Unit, P.O. Box 1180, 15462, Dasman, Kuwait.
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Dasman, Kuwait. .,Biochemistry & Molecular Biology Unit, P.O. Box 1180, 15462, Dasman, Kuwait.
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14
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Cherian P, Al-Khairi I, Jamal M, Al-Sabah S, Ali H, Dsouza C, Alshawaf E, Al-Ali W, Al-Khaledi G, Al-Mulla F, Abu-Farha M, Abubaker J. Association Between Factors Involved in Bone Remodeling (Osteoactivin and OPG) With Plasma Levels of Irisin and Meteorin-Like Protein in People With T2D and Obesity. Front Endocrinol (Lausanne) 2021; 12:752892. [PMID: 34777249 PMCID: PMC8588843 DOI: 10.3389/fendo.2021.752892] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/08/2021] [Indexed: 01/05/2023] Open
Abstract
The musculoskeletal system consisting of bones and muscles have been recognized as endocrine organs secreting hormones that are involved in regulating metabolic and inflammatory pathways. Obesity and type 2 diabetes (T2D) are associated with several musculoskeletal system complications. We hypothesized that an interaction exists between adipomyokines namely, irisin and METRNL, and various molecules involved in bone remodeling in individuals with obesity and T2D. A total of 228 individuals were enrolled in this study, including 124 non-diabetic (ND) and 104 T2D. A Multiplex assay was used to assess the level of various osteogenic molecules namely osteoactivin, Syndecan, osteoprotegerin (OPG) and osteonectin/SPARC. Our data shows elevated levels of Osteoactivin, Syndecan, OPG and SPARC in T2D as compared to ND individuals (p ≤ 0.05). Using Spearman's correlation, a positive correlation was observed between irisin and Osteoactivin as well as OPG (p < 0.05). Similarly, a positive association was observed between METRNL and Osteoactivin (p < 0.05). The strong positive association shown in this study between irisin, METRNL and various molecules with osteogenic properties emphasize a possible interaction between these organs. This report suggests that having a dysregulation in the level of the aforementioned molecules could potentially affect the development of bone and muscle related complications that are associated with obesity and T2D.
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Affiliation(s)
- Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohammad Jamal
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Sulaibekhat, Kuwait
| | - Suleiman Al-Sabah
- Department of Pharmacology & Toxicology, Faculty of Medicine, Kuwait University, Safat, Kuwait
| | - Hamad Ali
- Department of Genetic and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Carol Dsouza
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Sulaibekhat, Kuwait
| | - Eman Alshawaf
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Waleed Al-Ali
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Sulaibekhat, Kuwait
| | - Ghanim Al-Khaledi
- Department of Pharmacology & Toxicology, Faculty of Medicine, Kuwait University, Safat, Kuwait
| | - Fahd Al-Mulla
- Department of Genetic and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
- *Correspondence: Mohamed Abu-Farha, ; Jehad Abubaker,
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
- *Correspondence: Mohamed Abu-Farha, ; Jehad Abubaker,
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Abu-Farha M, Ghosh A, Al-Khairi I, Madiraju SRM, Abubaker J, Prentki M. The multi-faces of Angptl8 in health and disease: Novel functions beyond lipoprotein lipase modulation. Prog Lipid Res 2020; 80:101067. [PMID: 33011191 DOI: 10.1016/j.plipres.2020.101067] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 09/17/2020] [Accepted: 09/29/2020] [Indexed: 12/18/2022]
Abstract
Angiopoietin-like protein (ANGPTL) family members, mainly ANGPTL3, ANGPTL4 and ANGPTL8, are physiological inhibitors of lipoprotein lipase (LPL), and play a critical role in lipoprotein and triglyceride metabolism in response to nutritional cues. ANGPTL8 has been described by different names in various studies and has been ascribed various functions at the systemic and cellular levels. Circulating ANGPTL8 originates mainly from the liver and to a smaller extent from adipose tissues. In the blood, ANGPTL8 forms a complex with ANGPTL3 or ANGPTL4 to inhibit LPL in fed or fasted conditions, respectively. Evidence is emerging for additional intracellular and receptor-mediated functions of ANGPTL8, with implications in NFκB mediated inflammation, autophagy, adipogenesis, intra-cellular lipolysis and regulation of circadian clock. Elevated levels of plasma ANGPTL8 are associated with metabolic syndrome, type 2 diabetes, atherosclerosis, hypertension and NAFLD/NASH, even though the precise relationship is not known. Whether ANGPTL8 has direct pathogenic role in these diseases, remains to be explored. In this review, we develop a balanced view on the proposed association of this protein in the regulation of several pathophysiological processes. We also discuss the well-established functions of ANGPTL8 in lipoprotein metabolism in conjunction with the emerging novel extracellular and intracellular roles of ANGPTL8 and the implicated metabolic and signalling pathways. Understanding the diverse functions of ANGPTL8 in various tissues and metabolic states should unveil new opportunities of therapeutic intervention for cardiometabolic disorders.
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Affiliation(s)
- Mohamed Abu-Farha
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Anindya Ghosh
- Departments of Nutrition, Biochemistry and Molecular Medicine, Université de Montréal, and Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - S R Murthy Madiraju
- Departments of Nutrition, Biochemistry and Molecular Medicine, Université de Montréal, and Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait..
| | - Marc Prentki
- Departments of Nutrition, Biochemistry and Molecular Medicine, Université de Montréal, and Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada.
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Alterki A, Joseph S, Thanaraj TA, Al-Khairi I, Cherian P, Channanath A, Sriraman D, Ebrahim MAK, Ibrahim A, Tiss A, Al-Mulla F, Rahman AMA, Abubaker J, Abu-Farha M. Targeted Metabolomics Analysis on Obstructive Sleep Apnea Patients after Multilevel Sleep Surgery. Metabolites 2020; 10:metabo10090358. [PMID: 32882816 PMCID: PMC7569907 DOI: 10.3390/metabo10090358] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/22/2020] [Accepted: 08/23/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is caused by partial or complete obstruction of the upper airways. Corrective surgeries aim at removing obstructions in the nasopharynx, oropharynx, and hypopharynx. OSA is associated with an increased risk of various metabolic diseases. Our objective was to evaluate the effect of surgery on the plasma metabolome. METHODS This study included 39 OSA patients who underwent Multilevel Sleep Surgery (MLS). Clinical and anthropometric measures were taken at baseline and five months after surgery. RESULTS The mean Apnea-Hypopnea Index (AHI) significantly dropped from 22.0 ± 18.5 events/hour to 8.97 ± 9.57 events/hour (p-Value < 0.001). Epworth's sleepiness Score (ESS) dropped from 12.8 ± 6.23 to 2.95 ± 2.40 (p-Value < 0.001), indicating the success of the surgery in treating OSA. Plasma levels of metabolites, phosphocholines (PC) PC.41.5, PC.42.3, ceremide (Cer) Cer.44.0, and triglyceride (TG) TG.53.6, TG.55.6 and TG.56.8 were decreased (p-Value < 0.05), whereas lysophosphatidylcholines (LPC) 20.0 and PC.39.3 were increased (p-Value < 0.05) after surgery. CONCLUSION This study highlights the success of MLS in treating OSA. Treatment of OSA resulted in an improvement of the metabolic status that was characterized by decreased TG, PCs, and Cer metabolites after surgery, indicating that the success of the surgery positively impacted the metabolic status of these patients.
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Affiliation(s)
- Abdulmohsen Alterki
- Department of Otolaryngology Head & Neck Surgery, Zain and Al Sabah Hospitals and Dasman Diabetes Institute, Dasman 15462, Kuwait; (A.A.); (M.A.K.E.); (A.I.)
| | - Shibu Joseph
- Special Service Facility Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (S.J.); (D.S.); (F.A.-M.)
| | - Thangavel Alphonse Thanaraj
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Dasman 15462, Kuwait; (T.A.T.); (A.C.)
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman 15462, Kuwait; (I.A.-K.); (P.C.); (A.T.)
| | - Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman 15462, Kuwait; (I.A.-K.); (P.C.); (A.T.)
| | - Arshad Channanath
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Dasman 15462, Kuwait; (T.A.T.); (A.C.)
| | - Devarajan Sriraman
- Special Service Facility Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (S.J.); (D.S.); (F.A.-M.)
| | - Mahmoud A. K. Ebrahim
- Department of Otolaryngology Head & Neck Surgery, Zain and Al Sabah Hospitals and Dasman Diabetes Institute, Dasman 15462, Kuwait; (A.A.); (M.A.K.E.); (A.I.)
| | - Alaaeldin Ibrahim
- Department of Otolaryngology Head & Neck Surgery, Zain and Al Sabah Hospitals and Dasman Diabetes Institute, Dasman 15462, Kuwait; (A.A.); (M.A.K.E.); (A.I.)
| | - Ali Tiss
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Dasman 15462, Kuwait; (I.A.-K.); (P.C.); (A.T.)
| | - Fahd Al-Mulla
- Special Service Facility Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (S.J.); (D.S.); (F.A.-M.)
| | - Anas M. Abdel Rahman
- Department of Genetics, King Faisal Specialist Hospital and Research Centre (KFSHRC), Zahrawi Street, Al Maather, Riyadh 11211, Saudi Arabia;
- Department of Biochemistry and Molecular Medicine, College of Medicine, Al Faisal University, Riyadh 11533, Saudi Arabia
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, NL A1B 3X7, Canada
| | - Jehad Abubaker
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, NL A1B 3X7, Canada
- Correspondence: (J.A.); (M.A.-F.); Tel.: +965-2224-2999 (ext. 3563) (J.A.); +965-2224-2999 (ext. 3010) (M.A.-F.)
| | - Mohamed Abu-Farha
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, NL A1B 3X7, Canada
- Correspondence: (J.A.); (M.A.-F.); Tel.: +965-2224-2999 (ext. 3563) (J.A.); +965-2224-2999 (ext. 3010) (M.A.-F.)
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Jamal MH, Abu-Farha M, Al-Khaledi G, Al-Sabah S, Ali H, Cherian P, Al-Khairi I, AlOtaibi F, Al-Ali W, Bosso M, Dsouza C, Abubaker J, Al-Mulla F. Effect of sleeve gastrectomy on the expression of meteorin-like (METRNL) and Irisin (FNDC5) in muscle and brown adipose tissue and its impact on uncoupling proteins in diet-induced obesity rats. Surg Obes Relat Dis 2020; 16:1910-1918. [PMID: 32861644 DOI: 10.1016/j.soard.2020.07.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/18/2020] [Accepted: 07/21/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Bariatric surgery is well established as a treatment for obesity and associated complications. This procedure improves metabolic homeostasis through changes in energy expenditure. We hypothesized that sleeve gastrectomy (SG) improves metabolic homeostasis by modulating energy expenditure and enhancing thermogenesis through increasing the expression level of meteorin-like protein (METRNL) and fibronectin type III domain-containing protein 5 (FNDC5/Irisin) through uncoupling proteins 1/2/3 (UCP1, UCP2, and UCP3). OBJECTIVES To study the effect of SG on the levels of proteins involved in thermogenesis process. SETTING Laboratory rats at Kuwait University. METHODS Male Sprague-Dawley rats, aged 4 to 5 weeks, were divided into 2 groups, control (n = 11) and diet-induced obesity (DIO) (n = 22). The control group was fed regular rat chow ad libitum, whereas the DIO group was fed cafeteria diet "high-fat/carbohydrate diet" ad libitum. At 21 weeks, rats in the DIO group that weighed 20% more than the control group animals underwent surgery. These rats were randomly subdivided into Sham and SG operation groups. Gene expression was evaluated, and enzyme-linked immunosorbent assays were employed to assess the changes in gene and protein levels in tissue and circulation. RESULTS The protein expression data revealed an increase in METRNL levels in the muscles and white adipose tissue of SG animals. METRNL level in circulation in SG animals was reduced compared with control and Sham rats. The level of Irisin increased in the muscle of SG animals compared with the control and Sham group animals; however, a decrease in Irisin level was observed in the white adipose tissue and brown adipose tissue of SG animals compared with controls. Gene expression analysis revealed decreased METRNL levels in muscle tissues in the SG group compared with the control group animals. Increased expression of FNDC5 (Irisin), UCP2, and UCP3 in the muscle tissue of SG animals was also observed. Furthermore, the levels of UCP1, UCP2, UCP3, and METRNL in the brown adipose tissue of SG animals were upregulated. No significant alteration in the gene expression of Irisin was observed in brown adipose tissue. CONCLUSIONS Sleeve gastrectomy induces weight loss through complex mechanisms that may include browning of fat.
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Affiliation(s)
- Mohammad H Jamal
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait.
| | - Mohamed Abu-Farha
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Ghanim Al-Khaledi
- Department of Pharmacology and Toxicology, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
| | - Suleiman Al-Sabah
- Department of Pharmacology and Toxicology, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
| | - Hamad Ali
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait; Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Preethi Cherian
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al-Khairi
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fatemah AlOtaibi
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
| | - Waleed Al-Ali
- Department of Pathology, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
| | - Mira Bosso
- Department of Pathology, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
| | - Carol Dsouza
- Department of Surgery, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait City, Kuwait
| | - Jehad Abubaker
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fahd Al-Mulla
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
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Al Shawaf E, Abu-Farha M, Devarajan S, Alsairafi Z, Al-Khairi I, Cherian P, Ali H, Mathur A, Al-Mulla F, Al Attar A, Abubaker J. ANGPTL4: A Predictive Marker for Diabetic Nephropathy. J Diabetes Res 2019; 2019:4943191. [PMID: 31772941 PMCID: PMC6854918 DOI: 10.1155/2019/4943191] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/22/2019] [Accepted: 09/07/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND ANGPTL4 is a glycoprotein that is involved in regulating triglyceride metabolism by inhibiting LPL activity under fasting conditions. Additionally, ANGPTL4 has been suggested as a link between hypertriglyceridemia and albuminuria in the nephrotic syndrome. In this study, we examined levels of circulating ANGPTL4 in people with diabetic nephropathy (DN) and its association with established DN-associated proteins such as IGFBP1 and IGFBP4. METHODS We quantified circulating ANGPTL4, IGFBP1, IGFBP3, and IGFBP4 in fasting plasma samples of 122 Kuwaiti participants using a multiplexing assay. The study involved 36 controls, as well as 86 people with type 2 diabetes (T2D) including 37 people with normal kidney function and 49 people with DN. RESULTS ANGPTL4 level was increased in people with DN (241.56 ± 14.1 μg/ml) compared to the control group (178.43 ± 24.09 μg/ml). The increase in ANGPTL4 correlated with clinical parameters of DN including albumin-to-creatinine ratio (r = 0.271, P = 0.002), serum creatinine (r = 0.381, P = 0.0001), and eGFR (r = -0.349, P < 0.0001). Furthermore, ANGPTL4 correlated positively with both IGFBP1 (r = 0.202, P = 0.026) and IGFBP4 (r = 0.364, P < 0.0001). Multiple regression analysis showed increased IGFBP1 and TG as predictors of higher ANGPTL4 in people with DN. In people with T2D, only IGFBP1 acted as a positive predictor of a rise in ANGPTL4. CONCLUSION In this study, our data showed a significant increase in circulating ANGPTL4, IGFBP1, and IGFBP4 in patients with DN. The elevation in ANGPTL4 correlated significantly with clinical markers of DN such as ACR, serum creatinine, and eGFR, as well as IGFBP1 and IGFBP4. Altogether, this suggests a potential role for ANGPTL4 in DN perhaps through its role in inhibiting LPL activity and promotes ANGPTL4 as a biochemical marker for the detection of a diabetic kidney disease in patients with T2D.
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Affiliation(s)
- Eman Al Shawaf
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait
| | | | - Zahra Alsairafi
- Department of Pharmacy Practice, Faculty of Pharmacy, Kuwait
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait
| | - Preethi Cherian
- Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait
| | - Hamad Ali
- Functional Genomic Unit, Dasman Diabetes Institute, Kuwait
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, Health Sciences Center, Kuwait University, Kuwait
| | - Aditi Mathur
- National Dasman Diabetes Biobank, Dasman Diabetes Institute, Kuwait
| | - Fahd Al-Mulla
- Functional Genomic Unit, Dasman Diabetes Institute, Kuwait
| | | | - Jehad Abubaker
- National Dasman Diabetes Biobank, Dasman Diabetes Institute, Kuwait
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Alghanim G, Qaddoumi MG, Alhasawi N, Cherian P, Al-Khairi I, Nizam R, Alkayal F, Alanbaei M, Tuomilehto J, Abubaker J, Abu-Farha M, Al-Mulla F. Higher Levels of ANGPTL5 in the Circulation of Subjects With Obesity and Type 2 Diabetes Are Associated With Insulin Resistance. Front Endocrinol (Lausanne) 2019; 10:495. [PMID: 31396158 PMCID: PMC6668602 DOI: 10.3389/fendo.2019.00495] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 07/08/2019] [Indexed: 11/30/2022] Open
Abstract
Objective: The family of angiopoietin-like proteins (ANGPTLs) is composed of eight ANGPTLs members that are involved in regulating various metabolic processes and have been implicated in type 2 diabetes (T2D) and obesity. ANGPTL5 is an understudied member of this family that has been suggested to regulate triglyceride metabolism with a potential role in obesity. This study was designed to investigate the expression levels of ANGPTL5 protein in the circulation of subjects with obesity and T2D. Methods: A total of 204 subjects were enrolled in this cross-sectional study, of which 95 had diagnosed T2D and 109 did not (non-T2D). Within the non-T2D group, 39 subjects were obese (BMI ≥ 30 Kg/m2) and 70 were not (BMI < 30 Kg/m2). Among subjects with T2D, 61 were obese and 34 were non-obese. Circulating ANGPTL5 plasma levels were measured by enzyme-linked immunosorbent assay (ELISA). Results: In this study, we showed that ANGPTL5 levels were higher in the plasma of subjects with T2D [mean ± standard error of the mean (SEM): 5.78 ± 2.70 ng/mL] compared with individuals without T2D (mean ± SEM: 4.42 ± 2.22 ng/mL; P < 0.001). Obese and non-T2D subjects had significantly higher levels of ANGPTL5 (mean ± SEM: 5.115 ± 0.366 ng/mL) compared with non-obese, non-T2D subjects (mean ± SEM: 4.02 ± 0.271 ng/mL; P = 0.003). Similarly, among subjects with diagnosed T2D, those who were obese had higher ANGPTL5 plasma levels than non-obese subjects, although this difference did not reach statistical significance (P = 0.088). Correlation analyses revealed that ANGPTL5 levels positively associated with fasting plasma glucose (FPG), glycated hemoglobin (HbA1c), triglycerides (TGL), and insulin resistance as measured by HOMA-IR. Conclusion: our data shows for the first time that circulating ANGPTL5 levels were higher in obese individuals and those with T2D. Further analysis will be required to better understand the interaction between ANGPTL5 and other metabolic related biomarkers to shed more light on its role in diabetes and obesity.
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Affiliation(s)
- Ghazi Alghanim
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohamed G. Qaddoumi
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- Pharmacology and Therapeutics Department, Faculty of Pharmacy, Kuwait University, Kuwait City, Kuwait
| | - Nouf Alhasawi
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Preethi Cherian
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Rasheeba Nizam
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fadi Alkayal
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Muath Alanbaei
- Department of Medicine, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| | | | - Jehad Abubaker
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- *Correspondence: Jehad Abubaker
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- Mohamed Abu-Farha ;
| | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
- Fahd Al-Mulla
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Cherian PT, Al-Khairi I, Sriraman D, Al-Enezi A, Al-Sultan D, AlOtaibi M, Al-Enezi S, Tuomilehto J, Al-Mulla F, Abubaker JA, Abu-Farha M. Increased Circulation and Adipose Tissue Levels of DNAJC27/RBJ in Obesity and Type 2-Diabetes. Front Endocrinol (Lausanne) 2018; 9:423. [PMID: 30131766 PMCID: PMC6090877 DOI: 10.3389/fendo.2018.00423] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 07/05/2018] [Indexed: 12/29/2022] Open
Abstract
Heat shock response is an essential cellular stress response. Dysregulation of various heat shock proteins (HSPs), within the heat shock response (HSR) pathway, play a vital role in this host-defense mechanism contributing to obesity-induced insulin resistance and type 2 diabetes (T2D). Previously, we have reported changes in the expression levels of several HSPs such as HSP40, HSP60, HSP70, and HSP90 in obese compared with lean individuals. DNAJC27 is a member of the HSP40 protein family that was previously identified as a body mass index (BMI) associated locus in genome-wide association (GWAS) studies. However, not much is known about the changes in DNAJC27 expression levels in obesity and T2D. In the present study, we aimed at understanding changes in DNAJC27 expression levels in plasma, peripheral blood mononuclear cells (PBMCs) and adipose tissue in association with obesity and T2D. A total of 277 individuals enrolled including 160 non-diabetic (96 non-obese and 64 obese) and 117 T2D (45 non-obese and 72 obese) individuals. Plasma level of DNAJC27 was significantly higher in obese individuals (6.28 ± 0.64 ng/mL) compared with non-obese individuals (4.8 ± 0.45 ng/mL) with P = 0.043. Dividing the population based on diabetes status showed that there was a significant increase in the plasma level of DNAJC27 in obese (6.90 ± 1.3 ng/mL) compared with non-obese individuals (3.81 ± 0.43 ng/mL) (P = 0.033) in the non-diabetic group. Similarly, DNAJC27 expression level was also higher in PBMCs and adipose tissue of obese individuals. DNAJC27 was found to be associated with leptin and resistin, adipokines known to be dysregulated in obesity, that stimulate inflammatory processes leading to metabolic disorders. In conclusion, our data show that DNAJC27 is elevated in obese and T2D individuals and was positively associated with obesity biomarkers such as leptin and resistin suggesting that this protein may play a role in the pathophysiology of these disorders.
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Affiliation(s)
- Preethi T. Cherian
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Devarajan Sriraman
- National Dasman Diabetes Biobank, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Ahmad Al-Enezi
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Dalal Al-Sultan
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohammed AlOtaibi
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Saad Al-Enezi
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
- Functional Genomic Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | | | - Fahd Al-Mulla
- Functional Genomic Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Jehad A. Abubaker
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
- *Correspondence: Jehad A. Abubaker
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
- Mohamed Abu-Farha ;
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Abu-Farha M, Cherian P, Al-Khairi I, Madhu D, Tiss A, Warsam S, Alhubail A, Sriraman D, Al-Refaei F, Abubaker J. Plasma and adipose tissue level of angiopoietin-like 7 (ANGPTL7) are increased in obesity and reduced after physical exercise. PLoS One 2017; 12:e0173024. [PMID: 28264047 PMCID: PMC5338794 DOI: 10.1371/journal.pone.0173024] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 02/14/2017] [Indexed: 12/16/2022] Open
Abstract
Objective ANGPTL7 is a member of the Angiopoietin-like (ANGPTL) protein family that is composed of eight proteins (1–8). Increasing evidence is associating ANGPTL proteins to obesity and insulin resistance. The biological role of ANGPTL7 is yet to be understood except for a recently proposed role in the pathophysiology of glaucoma. This study was designed to shed light on the function of ANGPTL7 in obesity and its modulation by physical exercise as well as its potential association with lipid profile. Methods A total of 144 subjects were enrolled in this study and finished three months of physical exercise. The participants were classified based on their BMI, 82 subjects were non-obese and 62 obese. ANGPTL7 levels in plasma and adipose tissue were measured by ELISA, RT-PCR and immunohistochemistry. Results In this study, we showed that ANGPTL7 level was increased in the plasma of obese subjects (1249.05± 130.39 pg/mL) as compared to non-obese (930.34 ± 87.27 pg/mL) (p-Value = 0.032). ANGPTL7 Gene and protein expression levels in adipose tissue also showed over two fold increase. Physical exercise reduced circulating level of ANGPTL7 in the obese subjects to 740.98± 127.18 pg/mL, (p-Value = 0.007). ANGPTL7 expression in adipose tissue was also reduced after exercise. Finally, ANGPTL7 circulating level showed significant association with TG level in the obese subjects (R2 = 0.183, p-Value = 0.03). Conclusion In conclusion, our data shows for the first time that obesity increases the level of ANGPTL7 in both plasma and adipose tissue. Increased expression of ANGPTL7 might play a minor role in the regulation of TG level in obese subjects either directly or through interaction with other ANGPTL protein members. Physical exercise reduced the level of ANGPTL7 highlighting the potential for targeting this protein as a therapeutic target for regulating dyslipidemia.
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Affiliation(s)
- Mohamed Abu-Farha
- Biochemistry and Molecular Biology Unit Dasman Diabetes Institute, Kuwait City, Kuwait
- * E-mail: (MAF); (JA)
| | - Preethi Cherian
- Biochemistry and Molecular Biology Unit Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology Unit Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Dhanya Madhu
- Biochemistry and Molecular Biology Unit Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Ali Tiss
- Biochemistry and Molecular Biology Unit Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Samia Warsam
- Biochemistry and Molecular Biology Unit Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Asma Alhubail
- Clinical Services Department; Dasman Diabetes Institute, Kuwait City, Kuwait
| | | | - Faisal Al-Refaei
- Clinical Services Department; Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Unit Dasman Diabetes Institute, Kuwait City, Kuwait
- * E-mail: (MAF); (JA)
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Abu-Farha M, Al-Khairi I, Cherian P, Chandy B, Sriraman D, Alhubail A, Al-Refaei F, AlTerki A, Abubaker J. Increased ANGPTL3, 4 and ANGPTL8/betatrophin expression levels in obesity and T2D. Lipids Health Dis 2016; 15:181. [PMID: 27733177 PMCID: PMC5062897 DOI: 10.1186/s12944-016-0337-x] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 09/17/2016] [Indexed: 12/17/2022] Open
Abstract
Background Hypertriglyceridemia is associated with increased risk for cardiovascular diseases and type 2 diabetes (T2D). Angiopoietin like proteins particularly 3, 4 and recently 8 are well established regulators of plasma triglyceride level through regulating the activity of lipoprotein lipase. Plasma level and association between ANGPTL3, 4 and 8 is not well established in human subjects. This study was designed to establish the level of these proteins in plasma and adipose tissues and investigate the association between ANGPTL8 with ANGPTL3 and 4 in T2D and non-diabetics subjects. Methods A total of 235 subjects were enrolled in this study, 144 non-diabetics and 91 T2D. ANGPTL 3, 4 and 8 levels were measured in plasma by ELISA and using real time RT-PCR in adipose tissues. Results In this study, we showed that ANGPTL3, 4 and 8 were higher in T2D subjects. Dividing the non-diabetic subjects according to their BMI showed higher level of ANGPTL3, 4 and 8 in obese subjects compared to non-obese subjects. No significant difference was observed between the T2D subjects. ANGPTL8 was showed positive correlation with ANGPTL3 in the non-diabetic subjects in the non-obese (r = 0.2437, p-Value = 0.0543) and obese subjects (r = 0.418, p-Value = 0.0125). No association was observed in the T2D subjects. On the other hand, ANGPTL4 was positively associated with the obese subjects in both the non-diabetics (r = 0.3322, p-Value = 0.0316) and the obese T2D subjects (r = 0.3161, p-Value = 0.0211). Conclusion In conclusion, our data shows that ANGPTL3, 4 and 8 are increased in obesity and T2D. ANGPTL8 associates with ANGPTL3 in the non-diabetic subjects while it associated more with ANGPTL4 in the obese and T2D subjects. Taken together, this data highlight the role of these proteins in metabolic diseases and how they interact with each other’s under different physiological and pathophysiological conditions.
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Affiliation(s)
- Mohamed Abu-Farha
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, P.O. Box 1180, Dasman, 15462, Kuwait.
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, P.O. Box 1180, Dasman, 15462, Kuwait
| | - Preethi Cherian
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, P.O. Box 1180, Dasman, 15462, Kuwait
| | - Betty Chandy
- Tissue Banking Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | | | - Asma Alhubail
- Clinical Services Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Faisal Al-Refaei
- Clinical Services Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Abdulmohsen AlTerki
- Clinical Services Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, P.O. Box 1180, Dasman, 15462, Kuwait.
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Khadir A, Kavalakatt S, Abubaker J, Cherian P, Madhu D, Al-Khairi I, Abu-Farha M, Warsame S, Elkum N, Dehbi M, Tiss A. Physical exercise alleviates ER stress in obese humans through reduction in the expression and release of GRP78 chaperone. Metabolism 2016; 65:1409-20. [PMID: 27506747 DOI: 10.1016/j.metabol.2016.06.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 06/08/2016] [Accepted: 06/14/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND OBJECTIVES Perturbation of the endoplasmic reticulum (ER) homeostasis has emerged as one of the prominent features of obesity and diabetes. This occurs when the adaptive unfolded protein response (UPR) fails to restore ER function in key metabolic tissues. We previously reported increased inflammation and impaired heat shock response (HSR) in obese human subjects that were restored by physical exercise. Here, we investigated the status of ER stress chaperone; glucose-regulated protein 78 (GRP78) and its downstream UPR pathways in human obese, and their modulation by a supervised 3-month physical exercise. METHODS Subcutaneous adipose tissue (SAT) and blood samples were collected from non-diabetic adult human lean (n=40) and obese (n=40, at baseline and after 3months of physical exercise). Transcriptomic profiling was used as a primary screen to identify differentially expressed genes and it was carried out on SAT samples using the UPR RT(2) Profiler PCR Array. Conventional RT-PCR, immunohistochemistry, immunofluorescence, Western blot and ELISA were used to validate the transcriptomic data. Correlation analyses with the physical, clinical and biochemical outcomes were performed using Pearson's rank correlation coefficient. RESULTS Levels of GRP78 and its three downstream UPR arms; activating transcription factor-6 (ATF6), inositol-requiring enzyme-1α (IRE1α) and protein kinase RNA-like endoplasmic reticulum kinase (PERK) were increased in obese subjects. More interestingly, higher levels of circulating GRP78 protein were found in obese compared to lean subjects which correlated negatively with maximum oxygen uptake (VO2 Max) but positively with high-sensitivity C-reactive protein (hsCRP) and obesity indicators such as BMI, percentage body fat (PBF) and waist circumference. GRP78 increased secretion in obese was further confirmed in vitro using 3T3-L1 preadipocyte cells under ER stress. Finally, we showed that physical exercise significantly attenuated the expression and release of GRP78 with a concomitant reduction in the phosphorylation of IRE1α and eukaryotic initiation factor-2α (eIF2α). CONCLUSION Our results suggest that physical exercise alleviates ER stress in human obese through attenuation of GRP78 signaling network.
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Affiliation(s)
- Abdelkrim Khadir
- Biochemistry and Molecular Biology Research Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Sina Kavalakatt
- Biochemistry and Molecular Biology Research Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Research Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Preethi Cherian
- Biochemistry and Molecular Biology Research Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Dhanya Madhu
- Biochemistry and Molecular Biology Research Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology Research Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology Research Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Samia Warsame
- Biochemistry and Molecular Biology Research Unit, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Naser Elkum
- Clinical Epidemiology, Sidra Medical and Research Center, Doha, Qatar
| | - Mohammed Dehbi
- Diabetes Research Centre, Qatar Biomedical Research Institute and Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - Ali Tiss
- Biochemistry and Molecular Biology Research Unit, Dasman Diabetes Institute, Kuwait City, Kuwait.
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Abu-Farha M, Abubaker J, Al-Khairi I, Cherian P, Noronha F, Kavalakatt S, Khadir A, Behbehani K, Alarouj M, Bennakhi A, Elkum N. Circulating angiopoietin-like protein 8 (betatrophin) association with HsCRP and metabolic syndrome. Cardiovasc Diabetol 2016; 15:25. [PMID: 26850725 PMCID: PMC4743238 DOI: 10.1186/s12933-016-0346-0] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 01/26/2016] [Indexed: 01/27/2023] Open
Abstract
Background ANGPTL8 also called betatrophin is a regulator of lipid metabolism through its interaction with ANGPTL3. It has also been suggested to play a role in insulin resistance and beta-cell proliferation. Based on its function, we hypothesized that ANGPTL8 will play a role in Metabolic Syndrome (MetS). To test this hypothesis we designed this study to measure ANGPTL8 level in subjects with MetS as well as its association with high sensitivity C-reactive protein (HsCRP) level in humans. Methods ANGPTL8 level was measured using ELISA in subjects with MetS as well as their controls, a total of 1735 subjects were enrolled. HsCRP was also measured and its association with ANGPTL8 was examined. Results ANGPTL8 level was higher in subjects with MetS 1140.6 (171.9–11736.1) pg/mL compared to 710.5 (59.5–11597.2) pg/mL in the controls. Higher levels of ANGPTL8 were also observed with the sequential increase in the number of MetS components (p value = <0.0001). ANGPTL8 showed strong positive correlation with HsCRP (r = 0.15, p value = <0.0001). Stratifying the population into tertiles according to the level of HsCRP showed increased ANGPTL8 level at higher tertiles of HsCRP in the overall population (p value = <0.0001).A similar trend was also observed in MetS and non-MetS subjects as well as in non-obese and obese subjects. Finally, multiple logistic regression models adjusted for age, gender, ethnicity and HsCRP level showed that subjects in the highest tertiles of ANGPTL8 had higher odds of having MetS (odd ratio [OR] = 2.3, 95 % confidence interval [CI] = (1.6–3.1), p value <0.0001. Conclusion In this study we showed that ANGPTL8 is increased in subjects with MetS and it was significantly associated with HsCRP levels in different subgroups highlighting its potential role in metabolic and inflammatory pathways.
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Affiliation(s)
- Mohamed Abu-Farha
- Biochemistry and Molecular Biology Unit, Dasman 15462, P.O. Box 1180, Kuwait City, Kuwait.
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Unit, Dasman 15462, P.O. Box 1180, Kuwait City, Kuwait.
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology Unit, Dasman 15462, P.O. Box 1180, Kuwait City, Kuwait.
| | - Preethi Cherian
- Biochemistry and Molecular Biology Unit, Dasman 15462, P.O. Box 1180, Kuwait City, Kuwait.
| | | | - Sina Kavalakatt
- Biochemistry and Molecular Biology Unit, Dasman 15462, P.O. Box 1180, Kuwait City, Kuwait.
| | - Abdelkrim Khadir
- Biochemistry and Molecular Biology Unit, Dasman 15462, P.O. Box 1180, Kuwait City, Kuwait.
| | | | | | | | - Naser Elkum
- Sidra Medical and Research Center, Clinical Epidemiology, P.O. Box 26999, Doha, Qatar.
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Abu-Farha M, Abubaker J, Noronha F, Al-Khairi I, Cherian P, Alarouj M, Bennakhi A, Elkum N. Lack of associations between betatrophin/ANGPTL8 level and C-peptide in type 2 diabetic subjects. Cardiovasc Diabetol 2015; 14:112. [PMID: 26289721 PMCID: PMC4546083 DOI: 10.1186/s12933-015-0277-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 08/10/2015] [Indexed: 02/07/2023] Open
Abstract
Background Betatrophin has been suggested as an inducer of β-cell proliferation in mice in addition to its function in regulating triglyceride. Recent data showed that betatrophin was increased in Type 2 Diabetes (T2D), however, its ability to induce insulin production has been questioned. We hypothesized that the increased betatrophin in T2D is not affecting insulin production from β-cells. To test this hypothesis, we investigated the association between betatrophin and C-peptide level in humans, which acts as a measure of endogenous insulin production from β-cells. Methods This study was designed to examine the association between plasma betatrophin level and C-peptide in 749 T2D and non-diabetics. Results Betatrophin and C-peptide levels were higher in T2D subjects compared with non-diabetics subjects. Betatrophin showed strong correlation with C-peptide in non-diabetics subjects (r = 0.28, p = < 0.0001). No association between betatrophin and C-peptide were observed in T2D subjects (r = 0.07, p = 0.3366). Dividing obese and non-obese subjects into tertiles according to betatrophin level showed significantly higher C-peptide levels at higher tertiles of betatrophin in obese non-diabetics subjects P-trend = 0.0046. On the other hand, C-peptide level was significantly higher in subject with higher betatrophin level in non-diabetics subjects across all age groups but not in T2D subjects. Multiple logistic regression models adjusted for age, BMI, gender, ethnicity as well as C-peptide level showed that subjects in the highest tertiles of betatrophin had higher odds of having T2D [odd ratio (OR) = 7.3, 95 % confidence interval (CI) 4.0–13.3]. Conclusion Increased betatrophin level in obese subjects is correlated with an increase in C-peptide level; which is possibly caused by the increased insulin resistance. On the other hand, no correlation is observed between increased betatrophin level and C-peptide in T2D subjects. In conclusion, the increased betatrophin in T2D subject does not cause any increase in insulin production as indicated by C-peptide level.
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Affiliation(s)
- Mohamed Abu-Farha
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, P.O. Box 1180, Dasman, 15462, Kuwait City, Kuwait.
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, P.O. Box 1180, Dasman, 15462, Kuwait City, Kuwait.
| | - Fiona Noronha
- Dasman Diabetes Institute, P.O. Box 1180, Dasman, 15462, Kuwait City, Kuwait.
| | - Irina Al-Khairi
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, P.O. Box 1180, Dasman, 15462, Kuwait City, Kuwait.
| | - Preethi Cherian
- Biochemistry and Molecular Biology Unit, Dasman Diabetes Institute, P.O. Box 1180, Dasman, 15462, Kuwait City, Kuwait.
| | - Monira Alarouj
- Dasman Diabetes Institute, P.O. Box 1180, Dasman, 15462, Kuwait City, Kuwait.
| | - Abdullah Bennakhi
- Dasman Diabetes Institute, P.O. Box 1180, Dasman, 15462, Kuwait City, Kuwait.
| | - Naser Elkum
- Clinical Epidemiology, Sidra Medical and Research Center, P.O. Box 26999, Doha, Qatar.
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Abu-Farha M, Abubaker J, Al-Khairi I, Cherian P, Noronha F, Hu FB, Behbehani K, Elkum N. Higher plasma betatrophin/ANGPTL8 level in Type 2 Diabetes subjects does not correlate with blood glucose or insulin resistance. Sci Rep 2015; 5:10949. [PMID: 26077345 PMCID: PMC4650613 DOI: 10.1038/srep10949] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 05/11/2015] [Indexed: 01/08/2023] Open
Abstract
Betatrophin/ANGPTL8 is a newly identified hormone produced in liver and adipose tissue that has been shown to be induced as a result of insulin resistance and regulates lipid metabolism. Little is known about betatrophin level in humans and its association with T2D and metabolic risk factors. Plasma level of betatrophin was measured by ELISA in 1603 subjects: 1047 non-diabetic and 556 T2D subjects and its associations with metabolic risk factors in both non-diabetic and T2D were also studied. Our data show a significant difference in betatrophin levels between non-diabetic (731.3 (59.5–10625.0) pg/ml) and T2D (1710.5 (197.4–12361.1) p < 0.001. Betatrophin was positively correlated with age, BMI, waist/hip ratio, FBG, HbA1C, HOMA-IR and TG in the non-diabetic subjects. However, no association was observed with BMI, FBG, HbA1C or HOMA-IR in T2D subjects. TC and LDL showed negative association with betatrophin in T2D subjects. Multivariate analysis showed that subjects in the highest tertile of betatrophin had higher odds of having T2D (odd ratio [OR] = 6.15, 95% confidence interval [CI] = (3.15 – 12.01). Our data show strong positive associations between betatrophin and FBG and insulin resistance in non-diabetic subjects. However, correlations with FBG and insulin resistance were diminished in T2D subjects.
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Affiliation(s)
| | | | | | | | - Fiona Noronha
- Biostatistics and Epidemiology Department Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Frank B Hu
- Departments of Nutrition and Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Kazem Behbehani
- 1] Biochemistry and Molecular Biology Unit [2] Biostatistics and Epidemiology Department Dasman Diabetes Institute, Kuwait City, Kuwait
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Khadir A, Tiss A, Abubaker J, Abu-Farha M, Al-Khairi I, Cherian P, John J, Kavalakatt S, Warsame S, Al-Madhoun A, Al-Ghimlas F, Elkum N, Behbehani K, Dermime S, Dehbi M. MAP kinase phosphatase DUSP1 is overexpressed in obese humans and modulated by physical exercise. Am J Physiol Endocrinol Metab 2015; 308:E71-83. [PMID: 25370852 DOI: 10.1152/ajpendo.00577.2013] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chronic low-grade inflammation and dysregulation of the stress defense system are cardinal features of obesity, a major risk factor for the development of insulin resistance and diabetes. Dual-specificity protein phosphatase 1 (DUSP1), known also as MAP kinase phosphatase 1 (MKP1), is implicated in metabolism and energy expenditure. Mice lacking DUSP1 are resistant to high-fat diet-induced obesity. However, the expression of DUSP1 has not been investigated in human obesity. In the current study, we compared the expression pattern of DUSP1 between lean and obese nondiabetic human subjects using subcutaneous adipose tissue (SAT) and peripheral blood mononuclear cells (PBMCs). The levels of DUSP1 mRNA and protein were significantly increased in obese subjects with concomitant decrease in the phosphorylation of p38 MAPK (p-p38 MAPK) and PGC-1α and an increase in the levels of phospho-JNK (p-JNK) and phospho-ERK (p-ERK). Moreover, obese subjects had higher levels of circulating DUSP1 protein that correlated positively with various obesity indicators, triglycerides, glucagon, insulin, leptin, and PAI-1 (P < 0.05) but negatively with V̇O(2max) and high-density lipoprotein (P < 0.05). The observation that DUSP1 was overexpressed in obese subjects prompted us to investigate whether physical exercise could reduce its expression. In this study, we report for the first time that physical exercise significantly attenuated the expression of DUSP1 in both the SAT and PBMCs, with a parallel increase in the expression of PGC-1α and a reduction in the levels of p-JNK and p-ERK along with attenuated inflammatory response. Collectively, our data suggest that DUSP1 upregulation is strongly linked to adiposity and that physical exercise modulates its expression. This gives further evidence that exercise might be useful as a strategy for managing obesity and preventing its associated complications.
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Affiliation(s)
| | - Ali Tiss
- Deptartment of Biomedical Research
| | | | | | | | | | | | | | | | | | | | - Naser Elkum
- Department of Biostatistics and Epidemiology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Kazem Behbehani
- Deptartment of Biomedical Research, Fitness and Rehabilitation Center, and Department of Biostatistics and Epidemiology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Said Dermime
- King Fahad Specialist Hospital, Dammam, Saudi Arabia; and
| | - Mohammed Dehbi
- Diabetes Research Centre, Qatar Biomedical Research Institute, Qatar Foundation, Doha, Qatar
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Tiss A, Khadir A, Abubaker J, Abu-Farha M, Al-Khairi I, Cherian P, John J, Kavalakatt S, Warsame S, Al-Ghimlas F, Elkum N, Behbehani K, Dermime S, Dehbi M. Immunohistochemical profiling of the heat shock response in obese non-diabetic subjects revealed impaired expression of heat shock proteins in the adipose tissue. Lipids Health Dis 2014; 13:106. [PMID: 24986468 PMCID: PMC4085713 DOI: 10.1186/1476-511x-13-106] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Accepted: 06/17/2014] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Obesity is characterized by a chronic low-grade inflammation and altered stress responses in key metabolic tissues. Impairment of heat shock response (HSR) has been already linked to diabetes and insulin resistance as reflected by decrease in heat shock proteins (HSPs) expression. However, the status of HSR in non-diabetic human obese has not yet been elucidated. The aim of the current study was to investigate whether obesity triggers a change in the HSR pattern and the impact of physical exercise on this pattern at protein and mRNA levels. METHODS Two groups of adult non-diabetic human subjects consisting of lean and obese (n = 47 for each group) were enrolled in this study. The expression pattern of HSP-27, DNAJB3/HSP-40, HSP-60, HSC-70, HSP72, HSP-90 and GRP-94 in the adipose tissue was primarily investigated by immunohistochemistry and then complemented by western blot and qRT-PCR in Peripheral blood mononuclear cells (PBMCs). HSPs expression levels were correlated with various physical, clinical and biochemical parameters. We have also explored the effect of a 3-month moderate physical exercise on the HSPs expression pattern in obese subjects. RESULTS Obese subjects displayed increased expression of HSP-60, HSC-70, HSP-72, HSP-90 and GRP-94 and lower expression of DNAJB3/HSP-40 (P < 0.05). No differential expression was observed for HSP-27 between the two groups. Higher levels of HSP-72 and GRP-94 proteins correlated positively with the indices of obesity (body mass index and percent body fat) and circulating levels of IFN-gamma-inducible protein 10 (IP-10) and RANTES chemokines. This expression pattern was concomitant with increased inflammatory response in the adipose tissue as monitored by increased levels of Interleukin-6 (IL-6), Tumor necrosis factor-α (TNF-α), and RANTES (P < 0.05). Physical exercise reduced the expression of various HSPs in obese to normal levels observed in lean subjects with a parallel decrease in the endogenous levels of IL-6, TNF-α, and RANTES. CONCLUSION Taken together, these data indicate that obesity triggers differential regulation of various components of the HSR in non-diabetic subjects and a 3-month physical moderate exercise was sufficient to restore the normal expression of HSPs in the adipose tissue with concomitant attenuation in the inflammatory response.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Mohammed Dehbi
- Diabetes Research Centre, Qatar Biomedical Research Institute, Box: 5825, Doha, Qatar.
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Abu-Farha M, Tiss A, Abubaker J, Khadir A, Al-Ghimlas F, Al-Khairi I, Baturcam E, Cherian P, Elkum N, Hammad M, John J, Kavalakatt S, Warsame S, Behbehani K, Dermime S, Dehbi M. Proteomics analysis of human obesity reveals the epigenetic factor HDAC4 as a potential target for obesity. PLoS One 2013; 8:e75342. [PMID: 24086512 PMCID: PMC3782461 DOI: 10.1371/journal.pone.0075342] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 08/13/2013] [Indexed: 02/07/2023] Open
Abstract
Sedentary lifestyle and excessive energy intake are prominent contributors to obesity; a major risk factors for the development of insulin resistance, type 2 diabetes and cardiovascular diseases. Elucidating the molecular mechanisms underlying these chronic conditions is of relevant importance as it might lead to the identification of novel anti-obesity targets. The purpose of the current study is to investigate differentially expressed proteins between lean and obese subjects through a shot-gun quantitative proteomics approach using peripheral blood mononuclear cells (PBMCs) extracts as well as potential modulation of those proteins by physical exercise. Using this approach, a total of 47 proteins showed at least 1.5 fold change between lean and obese subjects. In obese, the proteomic profiling before and after 3 months of physical exercise showed differential expression of 38 proteins. Thrombospondin 1 (TSP1) was among the proteins that were upregulated in obese subjects and then decreased by physical exercise. Conversely, the histone deacetylase 4 (HDAC4) was downregulated in obese subjects and then induced by physical exercise. The proteomic data was further validated by qRT-PCR, Western blot and immunohistochemistry in both PBMCs and adipose tissue. We also showed that HDAC4 levels correlated positively with maximum oxygen consumption (VO2 Max) but negatively with body mass index, percent body fat, and the inflammatory chemokine RANTES. In functional assays, our data indicated that ectopic expression of HDAC4 significantly impaired TNF-α-dependent activation of NF-κB, establishing thus a link between HDAC4 and regulation of the immune system. Together, the expression pattern of HDAC4 in obese subjects before and after physical exercise, its correlation with various physical, clinical and metabolic parameters along with its inhibitory effect on NF-κB are suggestive of a protective role of HDAC4 against obesity. HDAC4 could therefore represent a potential therapeutic target for the control and management of obesity and presumably insulin resistance.
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Affiliation(s)
- Mohamed Abu-Farha
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Ali Tiss
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Jehad Abubaker
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Abdelkrim Khadir
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Fahad Al-Ghimlas
- Fitness and Rehabilitation Centre, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Irina Al-Khairi
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Engin Baturcam
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Preethi Cherian
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Naser Elkum
- Department of Biostatistics & Epidemiology, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Maha Hammad
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Jeena John
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Sina Kavalakatt
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Samia Warsame
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Kazem Behbehani
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
- Fitness and Rehabilitation Centre, Dasman Diabetes Institute, Kuwait, Kuwait
- Department of Biostatistics & Epidemiology, Dasman Diabetes Institute, Kuwait, Kuwait
| | - Said Dermime
- Biomedical Research Facility, King Fahad Specialist Hospital Dammam, Dammam, Kingdom of Saudi Arabia
| | - Mohammed Dehbi
- Department of Biomedical Research, Dasman Diabetes Institute, Kuwait, Kuwait
- Genomic Medicine and Systems Biology Research Center, Qatar Biomedical Research Institute, Education City, Doha, Qatar
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Baturcam E, Abubakr J, Abu-Farha M, Al-Arouj M, Al-Ghimlas F, Al-Khairi I, Al-Mass A, Al-Mudhaf D, Bennakhi A, Cherian P, Hammad M, John J, Kavalakatt S, Khadir A, Tiss A, Warsame S, Dermime S, Dehbi M. P042 Multiplexed analysis of inflammatory, metabolic and stress markers in obese subjects before and after a defined exercise program. Cytokine 2012. [DOI: 10.1016/j.cyto.2012.06.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abubakr J, Abu-Farha M, Al-Arouj M, Al-Ghimlas F, Al-Khairi I, Al-Mudhaf D, Baturcam E, Bennakhi A, Cherian P, Hammad M, John J, Kavalakatt S, Khadir A, Tiss A, Warsame S, Dermime S, Dehbi M. Association of obesity with down-regulation of heat shock protein 40 expression and evidence that exercise retrieves its normal expression. BMC Proc 2012. [PMCID: PMC3394451 DOI: 10.1186/1753-6561-6-s3-p1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Al-Khairi I, Baharnoori M, Kamath A, Bhardwaj SK, Srivastava LK. Altered expression and alpha-1 adrenergic receptor mediated activity of protein kinase C in the prefrontal cortex of rats with neonatal ventral hippocampus lesions. Synapse 2009; 63:1051-9. [DOI: 10.1002/syn.20691] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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