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Moselhy SS, Razvi SS, ALshibili FA, Kuerban A, Hasan MN, Balamash KS, Huwait EA, Abdulaal WH, Al-Ghamdi MA, Kumosani TA, Abulnaja KO, Al-Malki AL, Asami T, Ismail IM. m-Coumaric acid attenuates non-catalytic protein glycosylation in the retinas of diabetic rats. JOURNAL OF PESTICIDE SCIENCE 2018; 43:180-185. [PMID: 30363123 PMCID: PMC6140656 DOI: 10.1584/jpestics.d17-091] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 03/28/2018] [Indexed: 06/01/2023]
Abstract
In this study, we investigated the inhibitory effects of m-coumaric acid on the glycosylation of proteins in the retinas of diabetic rats. Male rats were divided into two main groups, Group I (normal control) and Group II (diabetic); Group II was further divided into four subgroups: Group IIa (diabetic control), Group IIb (diabetic rats were given m-coumaric acid orally [150 mg/kg, body weight (bw)/day]), Group IIc (diabetic rats were given HCA m-coumaric acid orally [300 mg/kg bw/day]), and Group IId (diabetic rats were given insulin [10 units/kg bw/day]) as a positive control). The treatment lasted for six weeks, and the data obtained suggested that m-coumaric acid reduced glucose and glycated hemoglobin levels, which further decreased the formation of glucose-derived advanced glycation end products. Hence, it protected the tissues from the detrimental effects of hyperglycemia and enhanced antioxidant activity. In conclusion, m-coumaric acid could be a potential candidate to prevent the onset and progression of retinopathy in diabetic patients.
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Affiliation(s)
- Said Salama Moselhy
- Biochemistry Department, Faculty of Science, Bioactive Natural Products Research Group and Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Biochemistry, Faculty of Science, Ain Shams University, Abbasia, Cairo, Egypt
| | - Syed Shoeb Razvi
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Fawzia A. ALshibili
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abudukadeer Kuerban
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammed Nihal Hasan
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Khadijah Saeed Balamash
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Etimad A. Huwait
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Wesam H. Abdulaal
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Maryam A. Al-Ghamdi
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Taha A. Kumosani
- Biochemistry Department, Faculty of Science, Production of Bioproducts for Industrial Applications Research Group and Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Khalid Omar Abulnaja
- Biochemistry Department, Faculty of Science, Bioactive Natural Products Research Group and Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abdulrahman L. Al-Malki
- Biochemistry Department, Faculty of Science, Bioactive Natural Products Research Group and Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Tadao Asami
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo, Tokyo 113–8657, Japan
| | - Iman M. Ismail
- Nutrition Department, Faculty of Home Ecinomics, King Abdulaziz University, Jeddah, Saudi Arabia
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Vučić J, Stanković S, Vasić K, Cvetković T. T HE IMPACT OF MECHAN ISMS OF OXIDATIVE ST RESS ON THE DEVELPOMENT O F DIABETIC NEPHROPATHY IN TYPE 1 DIABETES. ACTA MEDICA MEDIANAE 2017. [DOI: 10.5633/amm.2017.0315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Bhat S, Mary S, Banarjee R, Giri AP, Kulkarni MJ. Immune response to chemically modified proteome. Proteomics Clin Appl 2014; 8:19-34. [PMID: 24375944 DOI: 10.1002/prca.201300068] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 12/06/2013] [Accepted: 12/09/2013] [Indexed: 11/10/2022]
Abstract
Both enzymatic and nonenzymatic PTMs of proteins involve chemical modifications. Some of these modifications are prerequisite for the normal functioning of cell, while other chemical modifications render the proteins as "neo-self" antigens, which are recognized as "non-self" leading to aberrant cellular and humoral immune responses. However, these modifications could be a secondary effect of autoimmune diseases, as in the case of type I diabetes, hyperglycemia leads to protein glycation. The enigma of chemical modifications and immune response is akin to the "chick-and-egg" paradox. Nevertheless, chemical modifications regulate immune response. In some of the well-known autoimmune diseases such as rheumatoid arthritis, systemic lupus erythematosus, and multiple sclerosis, chemically modified proteins act as autoantigens forming immune complexes. In some instances, chemical modifications are also involved in regulating immune response during pathogen infection. Further, the usefulness of proteomic analysis of immune complexes is briefly discussed.
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Affiliation(s)
- Shweta Bhat
- Proteomics Facility, Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, India
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Hoffman WH, Shacka JJ, Andjelkovic AV. Autophagy in the brains of young patients with poorly controlled T1DM and fatal diabetic ketoacidosis. Exp Mol Pathol 2012; 93:273-80. [PMID: 22079479 PMCID: PMC5557498 DOI: 10.1016/j.yexmp.2011.10.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Accepted: 10/14/2011] [Indexed: 02/07/2023]
Abstract
Semi-quantitative neuroradiologic studies, quantitative neuron density studies and immunocytochemistry markers of oxidative stress and neuroinflammation indicate neuronal injury and deficits in young patients with chronic poorly controlled type 1 diabetes mellitus (T1DM). Present data suggest that pathogenesis of the neuronal deficits in young patients, who die as the result of diabetic ketoacidosis (DKA) and brain edema (BE), does not involve apoptosis, a prominent form of regulated cell death in many disease states. To further address this we studied mediators of macroautophagy, endoplasmic reticulum (ER) stress and apoptosis. In all areas studied we demonstrated increased levels of macroautophagy-associated proteins including light chain-3 (LC3) and autophagy related protein-4 (Atg4), as well as increased levels of the ER-associated glucose-regulated protein78/binding immunoglobulin protein (GRP78/BiP) in T1DM. In contrast, cleaved caspase-3 was rarely detected in any T1DM brain regions. These results suggest that chronic metabolic instability and oxidative stress may cause alterations in the autophagy-lysosomal pathway but not apoptosis, and macroautophagy-associated molecules may serve as useful candidates for further study in the pathogenesis of early neuronal deficits in T1DM.
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Affiliation(s)
- William H Hoffman
- Department of Pediatrics, Section of Pediatric Endocrinology, Georgia Health Sciences University, Augusta, GA, USA.
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Palombo C, Kozakova M, Morizzo C, Gnesi L, Barsotti MC, Spontoni P, Massart F, Salvi P, Balbarini A, Saggese G, Di Stefano R, Federico G. Circulating endothelial progenitor cells and large artery structure and function in young subjects with uncomplicated type 1 diabetes. Cardiovasc Diabetol 2011; 10:88. [PMID: 21981808 PMCID: PMC3198903 DOI: 10.1186/1475-2840-10-88] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Accepted: 10/08/2011] [Indexed: 01/07/2023] Open
Abstract
Background Carotid intima-media thickness (IMT), indices of large artery stiffness and measures of endothelium function may be used as markers of early atherosclerosis in type 1 diabetes mellitus (T1DM). The aim of the present study was to compare the indices of large artery structure and function as well as endothelial function and regenerating capacity between adolescents with T1DM and healthy control of similar age. In addition, the associations of different vascular measures with endothelial progenitor cells (EPCs), glyco-metabolic control and serum levels of advanced glycation endproducts (AGEs), soluble receptors for AGEs (sRAGE) and adiponectin were evaluated. Methods Sixteen uncomplicated young T1DM patients (mean age 18 ± 2 years, history of disease 11 ± 5 years, HbA1c 7.7 ± 1.1%) and 26 controls (mean age 19 ± 2 years) were studied. A radiofrequency-based ultrasound system (Esaote MyLab 70) was used to measure carotid IMT and wave speed (WS, index of local stiffness), applanation tonometry (PulsePen) was applied to obtain central pulse pressure (PP) and augmentation index (AIx), and carotid-femoral pulse wave velocity (PWV, Complior) was used as index of aortic stiffness. Peripheral endothelium-dependent vasodilation was determined as reactive hyperemia index (RHI, EndoPAT). Circulating EPCs, glycometabolic profile, AGEs (autofluorescence method), sRAGE and adiponectin were also measured. Results After adjusting for age, sex and blood pressure, T1DM adolescents had significantly higher carotid IMT (456 ± 7 vs. 395 ± 63 μm, p < 0.005), carotid WS (p < 0.005), PWV (p = 0.01), AIx (p < 0.0001) and central PP (p < 0.01) and lower EPCs (p = 0.02) as compared to controls. RHI was reduced only in diabetic patients with HbA1c ≥7.5% (p < 0.05). In the overall population, EPCs were an independent determinant of carotid IMT (together with adiponectin), while fasting plasma glucose was an independent determinant of carotid WS, AIx and central PP. Conclusions Our findings suggest that young subjects with relatively long-lasting T1DM have a generalized preclinical involvement of large artery structure and function, as well as a blunted endothelium regenerating capacity. Hyperglycemia and suboptimal chronic glycemic control seem to deteriorate the functional arterial characteristics, such as large arteries stiffness, wave reflection and peripheral endothelium-dependent vasodilation, whereas an impaired endothelium regenerating capacity and adiponectin levels seem to influence arterial structure.
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Affiliation(s)
- Carlo Palombo
- Department of Surgery, University of Pisa, via Paradisa 2, Pisa, 56 124, Italy.
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Vignini A, Moroni C, Nanetti L, Raffaelli F, Cester A, Gabrielli O, Cherubini V, Mazzanti L. Alterations of platelet biochemical and functional properties in newly diagnosed type 1 diabetes: a role in cardiovascular risk? Diabetes Metab Res Rev 2011; 27:277-85. [PMID: 21309054 DOI: 10.1002/dmrr.1173] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND The involvement of platelets in the pathogenesis of diabetic vascular complications is supported by several studies. Type 1 diabetic (T1D) platelets show increased adhesiveness and aggregation related to a modification of nitric oxide synthase activity. Moreover, different cell types from diabetic patients showed a decreased membrane Na(+) /K(+) -ATPase activity, which might be involved in diabetic complications. The aim of this study was to investigate whether T1D at onset is able to induce alterations of platelet physicochemical and functional properties and whether these changes are affected by hyperglycaemia. METHODS The study was performed on 50 young subjects: 30 patients (1-14 years) affected by T1D and 20 age- and gender-matched healthy subjects. We analyzed platelet membrane fluidity by fluorescent anisotropy of 1-(4-trimethylaminophenyl)-6-phenyl-1,3,5-hexatriene and 1,6-diphenyl-1,3,5-hexatriene, Na(+) /K(+) -ATPase, nitric oxide, and peroxynitrite production. RESULTS In T1D subjects, we observed an increased fluidity in the plasma membrane outer part and greater rigidity in the internal part compared with that in controls. Na(+) /K(+) -ATPase activity and nitric oxide levels were significantly reduced, while peroxynitrite production was increased compared with that in controls. Moreover, correlations found between the above parameters were correlated with fasting glycaemia and haemoglobin A(1c). CONCLUSIONS T1D patients exhibit structural and functional modifications of platelet membrane properties and alterations of nitric oxide metabolism due to diabetes per se and not to chronic hyperglycaemia, insulin therapy, or ageing. These results support the hypothesis that oxidative attack could be an important early event in the pathogenesis of diabetic complications.
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Affiliation(s)
- Arianna Vignini
- Department of Biochemistry, Biology and Genetics, School of Medicine, Polytechnic University of Marche, Via Ranieri 65, Ancona, Italy.
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