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Ibrahim MA, Isah MB, Inim MD, Abdullahi AD, Adamu A. The connections of sialic acids and diabetes mellitus: therapeutic or diagnostic value? Glycobiology 2024; 34:cwae053. [PMID: 39041707 DOI: 10.1093/glycob/cwae053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 06/16/2024] [Accepted: 07/19/2024] [Indexed: 07/24/2024] Open
Abstract
Modulation of sialic acids is one of the important pathological consequences of both type 1 and type 2 diabetes mellitus with or without the micro- and macrovascular complications. However, the mechanistic, therapeutic and/or diagnostic implications of these observations are uncoordinated and possibly conflicting. This review critically analyses the scientific investigations connecting sialic acids with diabetes mellitus. Generally, variations in the levels and patterns of sialylation, fucosylation and galactosylation were predominant across various tissues and body systems of diabetic patients, but the immune system seemed to be most affected. These might be explored as a basis for differential diagnosis of various diabetic complications. Sialic acids are predominantly elevated in nearly all forms of diabetic conditions, particularly nephropathy and retinopathy, which suggests some diagnostic value but the mechanistic details were not unequivocal from the available data. The plausible mechanistic explanations for the elevated sialic acids are increased desialylation by sialidases, stimulation of hexosamine pathway and synthesis of acute phase proteins as well as oxidative stress. Additionally, sialic acids are also profoundly associated with glucose transport and insulin resistance in human-based studies while animal-based studies revealed that the increased desialylation of insulin receptors by sialidases, especially NEU1, might be the causal link. Interestingly, inhibition of the diabetes-associated NEU1 desialylation was beneficial in diabetes management and might be considered as a therapeutic target. It is hoped that the article will provide an informed basis for future research activities on the exploitation of sialic acids and glycobiology for therapeutic and/or diagnostic purposes against diabetes mellitus.
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Affiliation(s)
| | - Murtala Bindawa Isah
- Department of Biochemistry, Umaru Musa Yar'adua University, P.M.B. 2218, Katsina, Nigeria
| | - Mayen David Inim
- Department of Biochemistry, Ahmadu Bello University, Samaru, 80001, Zaria, Nigeria
| | | | - Auwal Adamu
- Department of Biochemistry, Ahmadu Bello University, Samaru, 80001, Zaria, Nigeria
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Erhabor OG, Obochi P, Isah MB, Usman MA, Umar IA, Simelane MBC, Shuaibu MN, Islam MS, Ibrahim MA. Possible involvement of sialidase and sialyltransferase activities in a stage-dependent recycling of sialic acid in some organs of type 1 and type 2 diabetic rats. Front Endocrinol (Lausanne) 2024; 15:1289653. [PMID: 38978616 PMCID: PMC11228288 DOI: 10.3389/fendo.2024.1289653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 05/27/2024] [Indexed: 07/10/2024] Open
Abstract
Background Type 1 (T1D) and type 2 (T2D) diabetes lead to an aberrant metabolism of sialoglycoconjugates and elevated free serum sialic acid (FSSA) level. The present study evaluated sialidase and sialyltranferase activities in serum and some organs relevant to diabetes at early and late stages of T1D and T2D. Methods Sialic acid level with sialidase and sialyltransferase activities were monitored in the serum, liver, pancreas, skeletal muscle and kidney of diabetic animals at early and late stages of the diseases. Results The FSSA and activity of sialidase in the serum were significantly increased at late stage of both T1D and T2D while sialic acid level in the liver was significantly decreased in the early and late stages of T1D and T2D, respectively. Furthermore, the activity of sialidase was significantly elevated in most of the diabetes-relevant organs while the activity of sialyltransferase remained largely unchanged. A multiple regression analysis revealed the contribution of the liver to the FSSA while pancreas and kidney contributed to the activity of sialidase in the serum. Conclusions We concluded that the release of hepatic sialic acid in addition to pancreatic and renal sialidase might (in)directly contribute to the increased FSSA during both types of diabetes mellitus.
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Affiliation(s)
| | - Peter Obochi
- Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
| | | | | | | | | | | | - Md. Shahidul Islam
- School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
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Peng J, Yu L, Huang L, Paschoal VA, Chu H, de Souza CO, Varre JV, Oh DY, Kohler JJ, Xiao X, Xu L, Holland WL, Shaul PW, Mineo C. Hepatic sialic acid synthesis modulates glucose homeostasis in both liver and skeletal muscle. Mol Metab 2023; 78:101812. [PMID: 37777009 PMCID: PMC10583174 DOI: 10.1016/j.molmet.2023.101812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/02/2023] Open
Abstract
OBJECTIVE Sialic acid is a terminal monosaccharide of glycans in glycoproteins and glycolipids, and its derivation from glucose is regulated by the rate-limiting enzyme UDP-GlcNAc 2-epimerase/ManNAc kinase (GNE). Although the glycans on key endogenous hepatic proteins governing glucose metabolism are sialylated, how sialic acid synthesis and sialylation in the liver influence glucose homeostasis is unknown. Studies were designed to fill this knowledge gap. METHODS To decrease the production of sialic acid and sialylation in hepatocytes, a hepatocyte-specific GNE knockdown mouse model was generated, and systemic glucose metabolism, hepatic insulin signaling and glucagon signaling were evaluated in vivo or in primary hepatocytes. Peripheral insulin sensitivity was also assessed. Furthermore, the mechanisms by which sialylation in the liver influences hepatic insulin signaling and glucagon signaling and peripheral insulin sensitivity were identified. RESULTS Liver GNE deletion in mice caused an impairment of insulin suppression of hepatic glucose production. This was due to a decrease in the sialylation of hepatic insulin receptors (IR) and a decline in IR abundance due to exaggerated degradation through the Eph receptor B4. Hepatic GNE deficiency also caused a blunting of hepatic glucagon receptor (GCGR) function which was related to a decline in its sialylation and affinity for glucagon. An accompanying upregulation of hepatic FGF21 production caused an enhancement of skeletal muscle glucose disposal that led to an overall increase in glucose tolerance and insulin sensitivity. CONCLUSION These collective observations reveal that hepatic sialic acid synthesis and sialylation modulate glucose homeostasis in both the liver and skeletal muscle. By interrogating how hepatic sialic acid synthesis influences glucose control mechanisms in the liver, a new metabolic cycle has been identified in which a key constituent of glycans generated from glucose modulates the systemic control of its precursor.
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Affiliation(s)
- Jun Peng
- Center for Pulmonary and Vascular Biology, Dept. of Pediatrics, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA.
| | - Liming Yu
- Center for Pulmonary and Vascular Biology, Dept. of Pediatrics, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Linzhang Huang
- Center for Pulmonary and Vascular Biology, Dept. of Pediatrics, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Vivian A Paschoal
- Dept. of Internal Medicine, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Haiyan Chu
- Center for Pulmonary and Vascular Biology, Dept. of Pediatrics, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Camila O de Souza
- Dept. of Internal Medicine, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Joseph V Varre
- Dept. of Nutrition & Integrative Physiology, University of Utah College of Health, 250 1850 E, Salt Lake City, UT, 84112, USA
| | - Da Young Oh
- Dept. of Internal Medicine, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Jennifer J Kohler
- Dept. of Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Xue Xiao
- Peter O'Donnell Jr. School of Public Health, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Lin Xu
- Peter O'Donnell Jr. School of Public Health, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - William L Holland
- Dept. of Nutrition & Integrative Physiology, University of Utah College of Health, 250 1850 E, Salt Lake City, UT, 84112, USA
| | - Philip W Shaul
- Center for Pulmonary and Vascular Biology, Dept. of Pediatrics, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA.
| | - Chieko Mineo
- Center for Pulmonary and Vascular Biology, Dept. of Pediatrics, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA; Dept. of Cell Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA.
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Sobenin IA, Markin AM, Glanz VY, Markina YV, Wu WK, Myasoedova VA, Orekhov AN. Prospects for the Use of Sialidase Inhibitors in Anti-atherosclerotic Therapy. Curr Med Chem 2021; 28:2438-2450. [PMID: 32867633 DOI: 10.2174/0929867327666200831133912] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/01/2020] [Accepted: 05/22/2020] [Indexed: 11/22/2022]
Abstract
The most typical feature of atherogenesis in humans at its early stage is the formation of foam cells in subendothelial arterial intima, which occurs as the consequence of intracellular cholesterol deposition. The main source of lipids accumulating in the arterial wall is circulating low-density lipoprotein (LDL). However, LDL particles should undergo proatherogenic modification to acquire atherogenic properties. One of the known types of atherogenic modification of LDL is enzymatic deglycosilation, namely, desialylation, which is the earliest change in the cascade of following multiple LDL modifications. The accumulating data make sialidases an intriguing and plausible therapeutic target, since pharmacological modulation of activity of these enzymes may have beneficial effects in several pathologies, including atherosclerosis. The hypothesis exists that decreasing LDL enzymatic desialylation may result in the prevention of lipid accumulation in arterial wall, thus breaking down one of the key players in atherogenesis at the cellular level. Several drugs acting as glycomimetics and inhibiting sialidase enzymatic activity already exist, but the concept of sialidase inhibition as an anti-atherosclerosis strategy remains unexplored to date. This review is focused on the potential possibilities of the repurposing of sialidase inhibitors for pathogenetic anti-atherosclerotic therapy.
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Affiliation(s)
- Igor A Sobenin
- Laboratory of Infection Pathology and Molecular Microecology & Central Laboratory of Pathology, Institute of Human Morphology, Moscow, Russian Federation
| | - Alexander M Markin
- Laboratory of Infection Pathology and Molecular Microecology & Central Laboratory of Pathology, Institute of Human Morphology, Moscow, Russian Federation
| | - Victor Y Glanz
- Laboratory of Infection Pathology and Molecular Microecology & Central Laboratory of Pathology, Institute of Human Morphology, Moscow, Russian Federation
| | - Yuliya V Markina
- Laboratory of Infection Pathology and Molecular Microecology & Central Laboratory of Pathology, Institute of Human Morphology, Moscow, Russian Federation
| | - Wei-Kai Wu
- Department of Internal Medicine, National Taiwan University Hospital, Bei- Hu Branch, Taipei, Taiwan
| | - Veronika A Myasoedova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Sciences, Moscow, Russian Federation
| | - Alexander N Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Sciences, Moscow, Russian Federation
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Tunali S, Gezginci-Oktayoglu S, Bolkent S, Coskun E, Bal-Demirci T, Ulkuseven B, Yanardag R. Protective Effects of an Oxovanadium(IV) Complex with N 2O 2 Chelating Thiosemicarbazone on Small Intestine Injury of STZ-Diabetic Rats. Biol Trace Elem Res 2021; 199:1515-1523. [PMID: 32648196 DOI: 10.1007/s12011-020-02269-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 06/23/2020] [Indexed: 02/03/2023]
Abstract
Vanadium compounds are being investigated as potential therapeutic agents in the treatment of many health problems, primarily diabetes. We aimed to provide the effect of N(1)-4-hydroxysalicylidene-N(4)-salicylidene-S-methyl-isothiosemicarbazidato-oxovanadium(IV) (VOL) on small intestinal injury in experimental male diabetic rats. Four groups were created of 3.0-3.5-month-old rats. The rats were made diabetic by a single dose of streptozotocin (STZ) at 65 mg/kg and grouped as follows: control animals, VOL-given control animals, STZ-induced diabetic animals and STZ-induced diabetic animals given VOL. A daily dose of 0.2 mM/kg vanadium complex was administered orally for 12 days after the inducement of diabetes. On the 12th day, small intestine tissue samples were taken. According to the data obtained from the biochemical analysis, reduced glutathione (GSH) level, catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferase (GST), superoxide dismutase (SOD), Na+/K+-ATPase and paraoxanase (PON) activities were increased, whereas sialic acid (SA), xanthine oxidase (XO) and disaccharidases (maltase and saccharidase) activities were decreased in the small intestine tissue of VOL-treated diabetic rats. Microscopic examinations revealed a remarkable decrease in the mucosal necrotic areas, discontinuity in the brush border, deterioration of the villi integrity and oedema inside the villi, but with a mild decrease in the inflammatory cells, deterioration and loss of integrity of the gland in the small intestine of VOL-treated diabetic rats. Moreover, VOL treatment markedly decreased the proliferation of villus cells and especially inflammatory cells in the small intestine of diabetic rats. According to the obtained data, the administration of VOL is a potentially convenient strategy to reducing small intestine injury in diabetic rats.
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Affiliation(s)
- Sevim Tunali
- Department of Chemistry, Biochemistry Division, Istanbul University-Cerrahpasa, Avcilar, 34320, Istanbul, Turkey.
| | - Selda Gezginci-Oktayoglu
- Faculty of Science, Department of Biology, Istanbul University, Vezneciler, 34134, Istanbul, Turkey
| | - Sehnaz Bolkent
- Faculty of Science, Department of Biology, Istanbul University, Vezneciler, 34134, Istanbul, Turkey
| | - Ediz Coskun
- Faculty of Science, Department of Biology, Istanbul University, Vezneciler, 34134, Istanbul, Turkey
| | - Tulay Bal-Demirci
- Department of Chemistry, Inorganic Chemistry Division, Istanbul University-Cerrahpasa, Avcilar, 34320, Istanbul, Turkey
| | - Bahri Ulkuseven
- Department of Chemistry, Inorganic Chemistry Division, Istanbul University-Cerrahpasa, Avcilar, 34320, Istanbul, Turkey
| | - Refiye Yanardag
- Department of Chemistry, Biochemistry Division, Istanbul University-Cerrahpasa, Avcilar, 34320, Istanbul, Turkey
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Inim MD, Ibrahim MA, Isah MB, Onyike E. Variations in the mRNA expression level of UDP-GlcNAc epimerase/ManNAc kinase and neuraminidase 1 genes in organs of type 2 diabetic animals. Glycoconj J 2021; 38:129-134. [PMID: 33608771 DOI: 10.1007/s10719-021-09979-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 01/13/2021] [Accepted: 02/10/2021] [Indexed: 12/21/2022]
Abstract
Sialic acid and its associated metabolic enzymes have emerged as important components of the pathophysiology of type 2 diabetes (T2D). There is an elevation in the serum concentration of sialic acid in humans and animals with T2D. The present study investigated the modulation of mRNA expression level of UDP-N-acetylglucosamine-2-epimerase/N-acetylmannosamine kinase (GNE) and neuraminidase 1 (NEU1) genes in some organs of type 2 diabetic rats. T2D was induced using fructose-streptozotocin model and eight weeks after the induction of diabetes, sialic acid was assayed in the blood and organs (adipose tissue, brain, colon, kidney, liver, pancreas, skeletal muscle and spleen) followed by quantification of mRNA expression level of GNE and NEU1 genes by qPCR. The results showed a significant (P < 0.05) increase in sialic acid level in the serum and all the afore-mentioned organs investigated except in the adipose tissue and skeletal muscle of the diabetic rats compared the normal control. The expression GNE gene was only increased in the pancreas (1.8-fold) of the diabetic rats while there was a decrease in the expression of the gene in the colon. In contrast, the expression of NEU1 gene was increased in the spleen (3.5-fold), brain (2.2-fold), liver (1.9-fold), colon (1.5-fold) and kidney of the diabetic rats. It was concluded that the elevated level of sialic acid in the organs of diabetic rats, except the pancreas, might not be due to increased endogenous synthesis of sialic acid.
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Affiliation(s)
- Mayen David Inim
- Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
| | | | | | - Elewechi Onyike
- Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
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Esievo KAN, Num-Adom SM, Adamu S, Ogbuagu NE, Aluwong T, Umar IA. Elevated serum sialic acids, a potent biomarker of alloxan-induced type 1 diabetes in dogs by ethanolic extract of Anogeissus leiocarpus. J Diabetes Metab Disord 2021; 20:179-186. [PMID: 34178829 DOI: 10.1007/s40200-021-00726-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 01/01/2021] [Indexed: 11/25/2022]
Abstract
Objectives This study investigated serum sialic acids for a predictive and diagnostic biomarker of diabetes mellitus (DM) in dogs and its prognostic value with ethanolic extract of Anogeissus leiocarpus. Design Four groups of 3 dogs were used; non-diabetic controls (ND), diabetic-untreated (DU), diabetic insulin-treated (DI) and diabetic extract-treated (DE). Free serum sialic acids (FSSA) and erythrocyte surface sialic acids (ESSA) were assayed in all groups, pre-and post-induction of hyperglycaemia and results were presented as means ± standard error of means (SEM) and subjected to ANOVA using Tukey's post-hoc tests with GraphPad Prism® statistical package. Results FSSA increased in DU and plateaued at third week (61.8 ± 0.41 μg/ml), (P < 0.002) with additional 38.2 μg/ml (62%) generated, coinciding with hyperglycaemia. FSSA of DI increased but declined to 22.3 ± 1.55 μg/ml. Extract of Anogeissus leiocarpus effectively modulated FSSA in DE as increased value declined to 21.4 ± 0.78 μg/ml. Pre-induction DU ESSA (8.27 ± 0.11 μg/ml) significantly (P < 0.002) decreased by third week (2.33 ± 1.49 μg/ml), coinciding with hyperglycaemia. Strong negative correlation coefficient (r = -0.92) occurred between DU's FSSA and ESSA and ND (P < 0.03). Sialic acid expression in dog's insulin dependent diabetes mellitus (IDDM) is 18% lower than normal. Extract of A. leiocarpus restored ESSA completely. ESSA cleaved in DU, 5.94 μg/ml (72%), could not account for the extra FSSA (32.26 μg/ml); liver and kidneys are contributors. Conclusion FSSA predicts canine DM.
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Affiliation(s)
| | - Sabina Mbafan Num-Adom
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
- Department of Veterinary Pathology, College of Veterinary Medicine, University of Agriculture, Makurdi, Benue State Nigeria
| | - Sani Adamu
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Ngozi Ejum Ogbuagu
- Department of Veterinary Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Tagang Aluwong
- Department of Veterinary Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria
| | - Ismaila Alhaji Umar
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
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Olaru OG, Constantin GI, Pena CM. Variation of total serum sialic acid concentration in postmenopausal women. Exp Ther Med 2020; 20:2455-2459. [PMID: 32765733 DOI: 10.3892/etm.2020.8873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 06/01/2020] [Indexed: 11/06/2022] Open
Abstract
Given its location and ubiquitous distribution, sialic acid can mediate or modulate a wide variety of physiological and pathological processes; however, there is scarce data regarding the associations between sialic acid serum levels and sex, age and menopause. The present study evaluated the age-related changes in serum sialic acid (SA) levels in 97 elderly subjects, including men and postmenopausal women. A significant increase in serum levels of sialic acid in postmenopausal women and a significant decrease in men were observed in an age-dependent manner. Furthermore, in postmenopausal women, positive correlations were observed between the total serum sialic acid level and age in all decades and subgroups. The total serum concentration of sialic acid in the postmenopausal women group exhibited a particular pattern; significantly lower levels were observed in subjects in the intermediate postmenopausal period compared with those in the first decade of post menopause and then higher levels again as the women get older (late climax), thus the concentration increased according to the age of the individual.
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Affiliation(s)
- Octavian Gabriel Olaru
- Department of Obstetrics and Gynecology, 'Carol Davila' University of Medicine and Pharmacy, 040292 Bucharest, Romania
| | - Gianina Ioana Constantin
- Department of Biology of Aging Research, 'Ana Aslan' National Institute of Gerontology and Geriatrics, 011241 Bucharest, Romania
| | - Catalina Monica Pena
- Department of Biology of Aging Research, 'Ana Aslan' National Institute of Gerontology and Geriatrics, 011241 Bucharest, Romania
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Liu J, Dolikun M, Štambuk J, Trbojević-Akmačić I, Zhang J, Zhang J, Wang H, Meng X, Razdorov G, Menon D, Zheng D, Wu L, Wang Y, Song M, Lauc G, Wang W. Glycomics for Type 2 Diabetes Biomarker Discovery: Promise of Immunoglobulin G Subclass-Specific Fragment Crystallizable N-glycosylation in the Uyghur Population. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2019; 23:640-648. [PMID: 31393219 DOI: 10.1089/omi.2019.0052] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Aberrant immunoglobulin G (IgG) N-glycosylation offers new prospects to detect changes in cell metabolism and by extension, for biomarker discovery in type 2 diabetes mellitus (T2DM). However, past studies did not analyze the individual IgG subclasses in relation to T2DM pathophysiology. We report here original findings through a comparison of the IgG subclass-specific fragment crystallizable (Fc) glycan biosignatures in 115 T2DM patients with 122 healthy controls within the Uyghur population in China. IgG Fc glycosylation profiles were analyzed using nano-liquid chromatography-mass spectrometry to exclude changes attributed to fragment antigen binding N-glycosylation. After correction for clinical covariates, 27 directly measured and 4 derived glycan traits of the IgG subclass-specific N-glycopeptides were significantly associated with T2DM. Furthermore, we observed in T2DM a decrease in bisecting N-acetylglucosamine of IgG2 and agalactosylation of IgG4, and an increase in sialylation of IgG4 and digalactosylation of IgG2. Classification model based on IgG subclass-specific N-glycan traits was able to distinguish patients with T2DM from controls with an area under the receiver operating characteristic curve of 0.927 (95% confidence interval 0.894-0.960, p < 0.001). In conclusion, a robust association between the IgG subclass-specific Fc N-glycomes and T2DM was observed in the Uyghur population sample in China, suggesting a potential for the IgG Fc glycosylation as a biomarker candidate for type 2 diabetes. The integration of glycomics with other system science biomarkers might offer further hope for innovation in diagnosis and treatment of T2DM in the future. Finally, it is noteworthy that "Population Glycomics" is an emerging approach to biomarker discovery for common complex diseases.
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Affiliation(s)
- Jiaonan Liu
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China
| | - Mamatyusupu Dolikun
- College of the Life Sciences and Technology, Xinjiang University, Urumqi, China
| | - Jerko Štambuk
- Genos Glycoscience Research Laboratory, Zagreb, Croatia
| | | | - Jie Zhang
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China
| | - Jinxia Zhang
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China
| | - Hao Wang
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China.,School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
| | - Xiaoni Meng
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China
| | | | - Desmond Menon
- School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
| | - Deqiang Zheng
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China
| | - Lijuan Wu
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China
| | - Youxin Wang
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China.,School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
| | - Manshu Song
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China.,School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
| | - Gordan Lauc
- Genos Glycoscience Research Laboratory, Zagreb, Croatia.,Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia
| | - Wei Wang
- Beijing Key Laboratory of Clinical Epidemiology, School of Public Health, Capital Medical University, Beijing, China.,School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
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Adua E, Memarian E, Russell A, Trbojević-Akmačić I, Gudelj I, Jurić J, Roberts P, Lauc G, Wang W. High throughput profiling of whole plasma N-glycans in type II diabetes mellitus patients and healthy individuals: A perspective from a Ghanaian population. Arch Biochem Biophys 2019; 661:10-21. [DOI: 10.1016/j.abb.2018.10.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 10/19/2018] [Accepted: 10/22/2018] [Indexed: 12/25/2022]
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Ekin S, Dogan M, Gok F, Karakus Y. Assessment of antioxidant enzymes, total sialic acid, lipid bound sialic acid, vitamins and selected amino acids in children with phenylketonuria. Pediatr Res 2018; 84:821-828. [PMID: 30135593 DOI: 10.1038/s41390-018-0137-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 04/27/2018] [Accepted: 07/16/2018] [Indexed: 11/09/2022]
Abstract
BACKGROUND In this study, children with phenylketonuria and healthy control subjects were assessed for glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), catalase (CAT) activity, malondialdehyde (MDA), glutathione (GSH), retinol, cholecalciferol, α-tocopherol, phylloquinone, total sialic acid (TSA), lipid bound sialic acid (LSA), total antioxidant (TAS), total oxidation (TOS), and amino acid levels, and the relationships of these variables with phenylketonuria were evaluated. METHODS The study included 60 children with phenylketonuria and 30 control subjects. Children with phenylketonuria were divided into hyperphenylalaninemia (HPA) and amino acid mixture (AAM) groups. RESULTS The HPA group had significantly lower levels of GSH-Px, CAT, GSH, TAS, α-aminobutyric acid, and taurine levels (p < 0.01, p < 0.05, p < 0.05, p < 0.001, p < 0.01, p < 0.05, respectively) than the control group. Additionally, the AAM group had significantly lower levels of CAT, TAS, and phylloquinones (p < 0.05, p < 0.05, p < 0.05, respectively) than the control group. It was observed in our study that in the HPA group, a significantly strong positive linear correlation was observed between phenylalanine and α-aminoadipic acid (r = 0.777; p = 0.002). CONCLUSIONS It was concluded that the levels of α-aminoadipic acid and phylloquinone might be an appropriate choice for the determination of phenylketonuria in parallel with the levels of phenylalanine. α-aminobutyric acid and phylloquinone as a supplement can decrease HPA damage.
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Affiliation(s)
- Suat Ekin
- Faculty of Science, Division of Biochemistry, Department of Chemistry, Yuzuncu Yil University, Van, Turkey.
| | - Murat Dogan
- Medical Faculty, Division of Pediatric Endocrinology, Department of Pediatrics, Yuzuncu Yil University, Van, Turkey
| | - Fazilet Gok
- Faculty of Science, Division of Biochemistry, Department of Chemistry, Yuzuncu Yil University, Van, Turkey
| | - Yağmur Karakus
- Faculty of Science, Division of Biochemistry, Department of Chemistry, Yuzuncu Yil University, Van, Turkey
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Altay M, Karakoç MA, Çakır N, Yılmaz Demirtaş C, Cerit ET, Aktürk M, Ateş İ, Bukan N, Arslan M. Serum Total Sialic Acid Level is Elevated in Hypothyroid Patients as an Atherosclerotic Risk Factor. J Clin Lab Anal 2016; 31. [PMID: 27457058 DOI: 10.1002/jcla.22034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 06/28/2016] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Serum total sialic acid (TSA) concentration is regarded as an indicator of the risks of atherosclerosis and cardiovascular diseases. The association between SA levels and atherosclerosis risk factors has not been assessed in patients with thyroid diseases. METHODS Sixty newly diagnosed treatment-naive hypothyroid patients, 35 with subclinical and 25 with overt hypothyroidism, and 30 euthyroid individuals were analyzed. SA was measured in fasting blood samples, as were routine biochemical parameters, some atherosclerosis markers and carotid artery intima media thickness (CIMT). RESULTS Mean SA (38.1 ± 12.0 vs. 46.0 ±15.8; P = 0.019) and CIMT (0.57 ± 0.06 vs. 0.62 ± 0.12; P = 0.013) were found to be higher in the patient group compared with the control group. Mean sialic acid was higher in overt hypothyroidism patients compared with subclinical hypothyroidism patients and the control group. No difference was found between the subclinical hypothyroidism group and the control group. Sialic acid level and CIMT had a positive correlation in both the entire population and the hypothyroidism group. The linear regression model established for mean CIMT level in the entire population showed that risk factors of LDL (B ± SE = 0.454 ± 0.206; P = 0.030), uric acid (B ± SE = 1.902 ± 0.686; P = 0.007), hs-CRP (B ± SE = 1.003 ± 0.380; P =0.010), and SA (B ± SE = 2.419 ± 0.450; P < 0.001) were independent predictors of CIMT level. CONCLUSION Sialic acid level is elevated in hypothyroid patients. However, this elevation is not related to thyroid hormone levels and autoantibodies. Correlations between SA and atherosclerosis indicators, such as CIMT, LDL, hs-CRP, and uric acid, in hypothyroid individuals suggest that SA may be an indicator of atherogenesis in these patients.
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Affiliation(s)
- Mustafa Altay
- Department of Endocrinology and Metabolism, Gazi University Medical Faculty, Ankara, Turkey
| | - Mehmet Ayhan Karakoç
- Department of Endocrinology and Metabolism, Gazi University Medical Faculty, Ankara, Turkey
| | - Nuri Çakır
- Department of Endocrinology and Metabolism, Gazi University Medical Faculty, Ankara, Turkey
| | | | - Ethem Turgay Cerit
- Department of Endocrinology and Metabolism, Gazi University Medical Faculty, Ankara, Turkey
| | - Müjde Aktürk
- Department of Endocrinology and Metabolism, Gazi University Medical Faculty, Ankara, Turkey
| | - İhsan Ateş
- Department of Internal Medicine, Numune Education and Research Hospital, Ankara, Turkey
| | - Neslihan Bukan
- Clinical Biochemistry, Gazi University Medical Faculty, Ankara, Turkey
| | - Metin Arslan
- Department of Endocrinology and Metabolism, Gazi University Medical Faculty, Ankara, Turkey
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Modulation of sialic acid levels among some organs during insulin resistance or hyperglycemic states. Mol Cell Biochem 2015; 411:235-9. [DOI: 10.1007/s11010-015-2585-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Accepted: 10/08/2015] [Indexed: 10/22/2022]
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He J, Mao W, Zhang J, Jin X. Association between Serum Sialic Acid Levels and Nonalcoholic Fatty Liver Disease: A Cross-Sectional Study. ANNALS OF NUTRITION AND METABOLISM 2015; 67:69-75. [DOI: 10.1159/000435839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 06/08/2015] [Indexed: 11/19/2022]
Abstract
Background: To assess the association between serum sialic acid (SA) levels and nonalcoholic fatty liver disease (NAFLD) in a Chinese population. Methods: A cross-sectional study was performed among 3,898 Chinese who took their annual health examination. Serum SA levels and other clinical and laboratory parameters were measured. Results: A total of 18.11% fulfilled the diagnostic criteria of NAFLD. NAFLD subjects with/without metabolic syndrome (MS) had significantly higher serum SA levels than those without NAFLD. Serum SA levels were significantly and positively correlated with components of MS (body mass index, systolic blood pressure, diastolic blood pressure, triglyceride and fasting plasma glucose) in the NAFLD group. Stepwise logistic regression analysis showed that SA levels were significantly associated with the risk factor for NAFLD. Serum SA levels were negatively correlated with the FIB-4 score, and lower serum SA levels were independent factors predicting advanced fibrosis in subjects with NAFLD. Conclusions: Our results showed a significant association between serum SA levels and NAFLD.
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