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Krishnasamy S, Ravi V, Rajaraman B, Kumar Thulasingam S, Dhevasena CS, Pathak A, Swaminathan K, Sundaresan M, Ayyappa KA, Arunkumar G, Kuppan G, Ramadas N, Vedantham S. Role of VEGF 165b/VEGF TOTAL ratio in gestational diabetes mellitus. Gynecol Endocrinol 2019; 35:811-814. [PMID: 30964350 DOI: 10.1080/09513590.2019.1595576] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 12/15/2022] Open
Abstract
Proper vascular function is important for well-being of mother and growing fetus. VEGFTOTAL, and VEGF165b levels and its vascular endothelial complications in gestational diabetes mellitus (GDM) together with the association of inflammation and advanced glycation end products (AGEs) are less studied. VEGF165b/VEGFTOTAL (VEGF RATIO) in GDM pregnant women was investigated in this study. Plasma VEGFTOTAL was lower in GDM (17.68 ± 1.30 pg/mL) compared to non-GDM (25.69 ± 1.40 pg/mL). VEGF165b, ICAM-1, and AGEs were higher in GDM (9.9 ± 1.4 pg/mL, 201.04 ± 7.85 µg/mL, and 10.40 ± 0.98 µg/mL, respectively) and lower in non-GDM (6.47 ± 0.70 pg/mL, 174.1 ± 7.11 µg/mL, and 4.71 ± 0.39 µg/mL, respectively). Compared to non GDM (0.25 ± 0.02), VEGF RATIO was higher in GDM (0.45 ± 0.04) and correlated with -ICAM-1 (r = 0.375, p < .001) and AGEs (r = 0.199, p < .05). Tertile stratification of VEGF RATIO implied that frequency of GDM increases with increasing tertiles of VEGF RATIO (p for trend <.001). Association of VEGF RATIO with GDM was significant even after adjusting for AGEs (OR = 1.279, CI = 1.118-1.462, p < .0010) but it lost its significance when adjusted for ICAM-1 (OR = 1.006, CI = 0.995-1.017, p = .308). VEGF RATIO plays an important role in GDM in association with vascular inflammation.
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Affiliation(s)
- Sundar Krishnasamy
- a School of Chemical and Biotechnology, SASTRA Deemed to be University , Thanjavur , India
| | - Vidya Ravi
- b Department of Obstetrics & Gynaecology, K.A.P. Viswanatham Government Medical College , Tiruchirapalli , India
| | - Barathi Rajaraman
- a School of Chemical and Biotechnology, SASTRA Deemed to be University , Thanjavur , India
| | | | - C S Dhevasena
- c Department of Obstetrics & Gynaecology, Kovai Medical Centre and Hospital , Coimbatore , India
| | - Atima Pathak
- c Department of Obstetrics & Gynaecology, Kovai Medical Centre and Hospital , Coimbatore , India
| | - Krishnan Swaminathan
- d Department of Endocrinology, Kovai Medical Centre and Hospital and Research Foundation , Coimbatore , India
| | - Mohanraj Sundaresan
- d Department of Endocrinology, Kovai Medical Centre and Hospital and Research Foundation , Coimbatore , India
| | | | - Ganeshprasad Arunkumar
- a School of Chemical and Biotechnology, SASTRA Deemed to be University , Thanjavur , India
| | - Gokulakrishnan Kuppan
- e Department of Research Biochemistry, Madras Diabetes Research Foundation, Chennai , India
| | - Nirupama Ramadas
- a School of Chemical and Biotechnology, SASTRA Deemed to be University , Thanjavur , India
| | - Srinivasan Vedantham
- a School of Chemical and Biotechnology, SASTRA Deemed to be University , Thanjavur , India
- f Division of R&D, MedGenome Labs Ltd , Bengaluru , India
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Ayyappa KA, Shatwan I, Bodhini D, Bramwell LR, Ramya K, Sudha V, Anjana RM, Lovegrove JA, Mohan V, Radha V, Vimaleswaran KS. High fat diet modifies the association of lipoprotein lipase gene polymorphism with high density lipoprotein cholesterol in an Asian Indian population. Nutr Metab (Lond) 2017; 14:8. [PMID: 28115978 PMCID: PMC5247808 DOI: 10.1186/s12986-016-0155-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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: 08/11/2016] [Accepted: 12/17/2016] [Indexed: 01/11/2023] Open
Abstract
Background Single nucleotide polymorphisms (SNPs) in lipoprotein lipase gene (LPL) have been shown to influence metabolism related to lipid phenotypes. Dietary factors have been shown to modify the association between LPL SNPs and lipids; however, to date, there are no studies in South Asians. Hence, we tested for the association of four common LPL SNPs with plasma lipids and examined the interactions between the SNPs and dietary factors on lipids in 1,845 Asian Indians. Methods The analysis was performed in 788 Type 2 diabetes cases and 1,057 controls randomly chosen from the cross-sectional Chennai Urban Rural Epidemiological Study. Serum triacylglycerol (TAG), serum total cholesterol, and high-density lipoprotein cholesterol (HDL-C) were measured using a Hitachi-912 autoanalyzer (Roche Diagnostics GmbH, Mannheim, Germany). Dietary intake was assessed using a semi-quantitative food frequency questionnaire. The SNPs (rs1121923, rs328, rs4922115 and rs285) were genotyped by polymerase chain reaction followed by restriction enzyme digestion and 20% of samples were sequenced to validate the genotypes obtained. Statistical Package for Social Sciences for Windows version 22.0 (SPSS, Chicago, IL) was used for statistical analysis. Results After correction for multiple testing and adjusting for potential confounders, SNPs rs328 and rs285 showed association with HDL-C (P = 0.0004) and serum TAG (P = 1×10−5), respectively. The interaction between SNP rs1121923 and fat intake (energy %) on HDL-C (P = 0.003) was also significant, where, among those who consumed a high fat diet (28.4 ± 2.5%), the T allele carriers (TT + XT) had significantly higher HDL-C concentrations (P = 0.0002) and 30% reduced risk of low HDL-C levels compared to the CC homozygotes. None of the interactions on other lipid traits were statistically significant. Conclusion Our findings suggest that individuals carrying T allele of the SNP rs1121923 have increased HDL-C levels when consuming a high fat diet compared to CC homozygotes. Our finding warrants confirmation in prospective studies and randomized controlled trials. Electronic supplementary material The online version of this article (doi:10.1186/s12986-016-0155-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- K A Ayyappa
- Department of Molecular Genetics, Madras Diabetes Research Foundation, Kallam Anji Reddy Centre, Plot no. 20, Golden Jubilee Biotech Park for Women Society, SIPCOT-IT PARK, Siruseri, Chennai 603 103 India.,Present Address: Department of Biotechnology, School of Chemical & Biotechnology, SASTRA University, Tanjore, India
| | - I Shatwan
- Department of Food and Nutritional Sciences, Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP UK.,Food and Nutrition Department, Faculty of Home Economics, King Abdulaziz University, Jeddah, Saudi Arabia
| | - D Bodhini
- Department of Molecular Genetics, Madras Diabetes Research Foundation, Kallam Anji Reddy Centre, Plot no. 20, Golden Jubilee Biotech Park for Women Society, SIPCOT-IT PARK, Siruseri, Chennai 603 103 India
| | - L R Bramwell
- Department of Food and Nutritional Sciences, Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP UK
| | - K Ramya
- Department of Molecular Genetics, Madras Diabetes Research Foundation, Kallam Anji Reddy Centre, Plot no. 20, Golden Jubilee Biotech Park for Women Society, SIPCOT-IT PARK, Siruseri, Chennai 603 103 India
| | - V Sudha
- Department of Foods, Nutrition and Dietetics Research, Madras Diabetes Research Foundation, Chennai, India
| | - R M Anjana
- Department of Diabetology, Madras Diabetes Research Foundation, Chennai, India.,Dr. Mohan's Diabetes Specialties Centre, WHO Collaborating Centre for Non-communicable Diseases Prevention and Control, Chennai, India
| | - J A Lovegrove
- Department of Food and Nutritional Sciences, Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP UK
| | - V Mohan
- Department of Diabetology, Madras Diabetes Research Foundation, Chennai, India.,Dr. Mohan's Diabetes Specialties Centre, WHO Collaborating Centre for Non-communicable Diseases Prevention and Control, Chennai, India
| | - V Radha
- Department of Molecular Genetics, Madras Diabetes Research Foundation, Kallam Anji Reddy Centre, Plot no. 20, Golden Jubilee Biotech Park for Women Society, SIPCOT-IT PARK, Siruseri, Chennai 603 103 India
| | - K S Vimaleswaran
- Department of Food and Nutritional Sciences, Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP UK
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Smina TP, Mohan A, Ayyappa KA, Sethuraman S, Krishnan UM. Hesperetin exerts apoptotic effect on A431 skin carcinoma cells by regulating mitogen activated protein kinases and cyclins. Cell Mol Biol (Noisy-le-grand) 2015; 61:92-99. [PMID: 26518900] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 10/08/2015] [Indexed: 06/05/2023]
Abstract
Dietary agents and phytochemicals have been utilised for the management of cancer for many years. Hesperetin, a dietary flavonoid found abundantly in citrus fruits, was evaluated for its cytotoxic and pro-apoptotic activities in A431 human skin carcinoma cells. Effect of hesperetin in regulating MAPK (Mitogen-Activated Protein Kinase) signalling pathway and levels of various cyclins and other downstream apoptotic proteins were investigated. Its critical role in regulating other apoptotic proteins especially p21, Bcl-2 and Bax were also assessed. Hesperetin stimulated alterations in MAPK (Mitogen-Activated Protein Kinase) signalling pathway by modulating the expression levels of ERK (Extracellular signal Regulated Kinase), JNK (c-Jun NH2-terminal Kinase) and p38; thereby induced apoptosis in A431 cells. Hesperetin regulated the levels of cyclin A2, B1, D1, D3 and E1. It also modulated the levels of various proteins involved in apoptotic pathway especially p21, Bcl-2 and Bax. The study revealed the efficiency of hesperetin against human skin carcinoma cells and proposed its mechanism of action; there by opens up new avenues for the use of this dietary flavonoid against skin malignancies.
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Affiliation(s)
- T P Smina
- SASTRA University Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology Thanjavur India
| | - A Mohan
- SASTRA University Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology Thanjavur India
| | - K A Ayyappa
- SASTRA University Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology Thanjavur India
| | - S Sethuraman
- SASTRA University Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology Thanjavur India
| | - U M Krishnan
- SASTRA University Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology Thanjavur India umakrishnan@sastra.edu
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Ramya K, Ayyappa KA, Ghosh S, Mohan V, Radha V. Genetic association of ADIPOQ gene variants with type 2 diabetes, obesity and serum adiponectin levels in south Indian population. Gene 2013; 532:253-62. [PMID: 24055485 DOI: 10.1016/j.gene.2013.09.012] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [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: 05/07/2013] [Revised: 08/28/2013] [Accepted: 09/04/2013] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To investigate the genetic association of eight variants of the adiponectin gene with type 2 diabetes mellitus (T2DM), obesity and serum adiponectin level in the south Indian population. METHODS The study comprised of 1100 normal glucose tolerant (NGT) and 1100 type 2 diabetic, unrelated subjects randomly selected from the Chennai Urban Rural Epidemiology Study (CURES), in southern India. Fasting serum adiponectin levels were measured by radioimmunoassay. The variants were screened by polymerase chain reaction-restriction fragment length polymorphism. Linkage disequilibrium was estimated from the estimates of haplotype frequencies. RESULTS Of the 8 variants, four SNPs namely, +276 G/T (rs1501299), -4522 C/T (rs822393), -11365 C/G (rs266729), and +712 G/A (rs3774261) were significantly associated with T2DM in our study population. The -3971 A/G (rs822396) and -11391 G/A (rs17300539) SNPs' association with T2DM diabetes was mediated through obesity (where the association with type 2 diabetes was lost after adjusting for BMI). There was an independent association of +276 G/T (rs1501299) and -3971 A/G (rs822396) SNPs with generalized obesity and +349 A/G (rs2241767) with central obesity. Four SNPs, -3971 A/G (rs822396), +276 G/T (rs1501299), -4522 C/T (rs822393) and Y111H T/C (rs17366743) were significantly associated with hypoadiponectinemia. The haplotypes GCCATGAAT and AGCGTGGGT conferred lower risk of T2DM in this south Indian population. CONCLUSION The adiponectin gene variants and haplotype contribute to the genetic risk towards the development of type 2 diabetes, obesity and hypoadiponectinemia in the south Indian population.
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Affiliation(s)
- Kandaswamy Ramya
- Madras Diabetes Research Foundation-ICMR Advanced Centre for Genomics of Type 2 Diabetes and Dr. Mohan's Diabetes Specialities Centre, Gopalapuram, Chennai 600086, India
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Ayyappa KA, Ghosh S, Mohan V, Radha V. Association of hepatic lipase gene polymorphisms with hypertriglyceridemia and low high-density lipoprotein-cholesterol levels among South Indian subjects without diabetes. Diabetes Technol Ther 2013; 15:503-12. [PMID: 23550552 DOI: 10.1089/dia.2012.0302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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] [Indexed: 11/13/2022]
Abstract
AIM The aim of this study was to investigate the association of four variants of the hepatic lipase (HL [or LIPC]) gene with various lipid parameters among South Indian subjects with normal glucose tolerance (NGT). SUBJECTS AND METHODS In total, 747 NGT subjects were randomly selected from the Chennai Urban Rural Epidemiological Study (CURES). Serum triglycerides, serum cholesterol, and high-density lipoprotein cholesterol (HDL-C) were measured using a Hitachi-912 autoanalyzer (Roche Diagnostics GmbH, Mannheim, Germany). Genotyping of HL gene variants was done by the polymerase chain reaction-restriction fragment length polymorphism method, and 20% of samples were sequenced to validate the genotypes obtained. Haplotype analysis was also carried out. RESULTS The TT genotype of the rs1800588 C/T (C-480T) polymorphism was significantly associated with hypertriglyceridemia, with an adjusted odds ratio of 2.58 (95% confidence interval 1.38-4.85, P=0.003), whereas those with the CC genotype of the rs6074 A/C (Thr479Thr) had significantly lower HDL-C levels (41.3±9.8 mg/dL) compared with the AA genotype (43.6±10.2 mg/dL, P=0.02). Haplotype analysis showed the TGC haplotype was significantly associated with low HDL-C levels. CONCLUSIONS Among South Indian subjects without diabetes, the rs1800588 C/T (C-480T) and rs6074 C/A (Thr479Thr) variants of the HL gene are associated with hypertriglyceridemia and low HDL-C, respectively. The TGC haplotype was significantly associated with low HDL-C.
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Affiliation(s)
- Kuppuswamy Ashok Ayyappa
- Madras Diabetes Research Foundation-ICMR Advanced Centre for Genomics of Type 2 Diabetes and Dr. Mohan's Diabetes Specialities Centre, WHO Collaborating Centre for Non-Communicable Diseases, IDF Centre for Education, Gopalapuram, Chennai, India
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