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Diabetes methylation

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https://www.readbyqxmd.com/read/29933236/serum-polyfluoroalkyl-chemicals-are-associated-with-risk-of-cardiovascular-diseases-in-national-us-population
#1
Mengmeng Huang, Jingjing Jiao, Pan Zhuang, Xinyu Chen, Jun Wang, Yu Zhang
BACKGROUND: Perfluoroalkyl chemicals (PFCs) as possible cardiovascular disrupters are universally detected in humans. However, evidence from epidemiological studies appears insufficient and ambiguous. OBJECTIVES: We aim to examine the serum PFCs levels and their associations with the prevalence of cardiovascular diseases (CVD) and related outcomes in general US population. METHODS: We investigated the serum levels of 12 major PFCs, including perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid (PFHxS), 2-(N-ethyl-perfluorooctane sulfonamido) acetate (EPAH), 2-(N-methyl-perfluorooctane sulfonamido) acetate (MPAH), perfluorodecanoic acid (PFDE), perfluorobutane sulfonate (PFBS), perfluoroheptanoic acid (PFHP), perfluorononanoic acid (PFNA), perfluorooctane sulfonamide (PFSA), perfluoroundecanoic acid (PFUA), and perfluorododecanoic acid (PFDO), in 10,859 participants from the National Health and Nutritional Examination Survey (NHANES) 1999-2014...
June 19, 2018: Environment International
https://www.readbyqxmd.com/read/29922517/transcriptional-regulation-of-metabolism-in-disease-from-transcription-factors-to-epigenetics
#2
Liam J Hawkins, Rasha Al-Attar, Kenneth B Storey
Every cell in an individual has largely the same genomic sequence and yet cells in different tissues can present widely different phenotypes. This variation arises because each cell expresses a specific subset of genomic instructions. Control over which instructions, or genes, are expressed is largely controlled by transcriptional regulatory pathways. Each cell must assimilate a huge amount of environmental input, and thus it is of no surprise that transcription is regulated by many intertwining mechanisms...
2018: PeerJ
https://www.readbyqxmd.com/read/29914667/methylation-in-3-near-region-of-gc-gene-and-its-association-with-the-level-of-vitamin-d-binding-protein-and-type-2-diabetes-mellitus
#3
Songcheng Yu, Yan Wang, Xing Li, Zhenxing Mao, Fei Yu, Ling Wang, Yue Ba, Chongjian Wang, Wenjie Li
As the major vitamin D binding protein (DBP), the group-specific component (GC) plays an important role in the bioactivity of vitamin D. Abnormal expression of GC gene may be associated with vitamin D related disease, type 2 diabetes mellitus (T2DM). DNA methylation is an important regulator of gene expression. It has been reported that methylation in 3' untranslated region played a role in regulation of protein expression via interaction with miRNA. This study hypothesized that DNA methylation of 3' near region of GC gene (3'GC) might be associated with T2DM...
June 2018: Nutrition Research
https://www.readbyqxmd.com/read/29902553/antioxidant-and-pro-oxidant-actions-of-resveratrol-on-human-serum-albumin-in-the-presence-of-toxic-diabetes-metabolites-glyoxal-and-methyl-glyoxal
#4
N M O Arcanjo, C Luna, M S Madruga, M Estévez
Methylglyoxal (MGO) and glyoxal (GO) are attracting considerable attention because of their role in the onset of diabetes symptoms. Therefore, to comprehend the molecular fundamentals of their pathological actions is of the utmost importance. In this study, the molecular interactions between resveratrol (RES) and human serum albumin (HSA) and the ability of the stilbene to counteract the oxidative damage caused by pathological concentrations of MGO and GO to the human plasma protein, was assessed. The oxidation of Cys34 in HSA as well as the formation of specific protein semialdehydes AAS (α-aminoadipic), GGS (γ-glutamic) and the accumulation of Advanced Glycation End-products (AGEs) was investigated...
June 11, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29902415/synthesis-of-newly-functionalized-1-4-naphthoquinone-derivatives-and-their-effects-on-wound-healing-in-alloxan-induced-diabetic-mice
#5
Silvia Helena Cardoso, Cleidijane Rodrigues de Oliveira, Ari Souza Guimarães, Jadiely Nascimento, Julianderson de Oliveira Dos Santos Carmo, Jamylle Nunes de Souza Ferro, Ana Carolina de Carvalho Correia, Emiliano Barreto
Naphthoquinone derivatives have various pharmacological properties. Here, we describe the synthesis of new 1,4-naphthoquinone derivatives inspired by lawsone and β-lapachone and their effects on both migration of fibroblasts in vitro and dermal wound healing in diabetic mice. NMR and FTIR spectroscopy aided characterization of chemical composition and demonstrated the molecular variations after the synthesis of four different derivatives, namely 2-bromo-1,4-naphthoquinone (termed derivative S3), 2-N-phenylamino-1,4-naphthoquinone (derivative S5), 2-N-isonicotinoyl-hydrazide-1,4-naphthoquinone (derivative S6), and 1-N-isonicotinoyl-hydrazone-[2-hydroxy-3-(3-methyl-2-butenyl)]-1,4-naphthoquinone (derivative S7)...
June 11, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29901700/epigenomics-and-metabolomics-reveal-the-mechanism-of-the-apoa2-saturated-fat-intake-interaction-affecting-obesity
#6
Chao-Qiang Lai, Caren E Smith, Laurence D Parnell, Yu-Chi Lee, Dolores Corella, Paul Hopkins, Bertha A Hidalgo, Stella Aslibekyan, Michael A Province, Devin Absher, Donna K Arnett, Katherine L Tucker, Jose M Ordovas
Background: The putative functional variant -265T>C (rs5082) within the APOA2 promoter has shown consistent interactions with saturated fatty acid (SFA) intake to influence the risk of obesity. Objective: The aim of this study was to implement an integrative approach to characterize the molecular basis of this interaction. Design: We conducted an epigenome-wide scan on 80 participants carrying either the rs5082 CC or TT genotypes and consuming either a low-SFA (<22 g/d) or high-SFA diet (≥22 g/d), matched for age, sex, BMI, and diabetes status in the Boston Puerto Rican Health Study (BPRHS)...
June 12, 2018: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29899542/prenatal-iron-exposure-and-childhood-type-1-diabetes
#7
Ketil Størdal, Harry J McArdle, Helen Hayes, German Tapia, Marte K Viken, Nicolai A Lund-Blix, Margaretha Haugen, Geir Joner, Torild Skrivarhaug, Karl Mårild, Pål R Njølstad, Merete Eggesbø, Siddhartha Mandal, Christian M Page, Stephanie J London, Benedicte A Lie, Lars C Stene
Iron overload due to environmental or genetic causes have been associated diabetes. We hypothesized that prenatal iron exposure is associated with higher risk of childhood type 1 diabetes. In the Norwegian Mother and Child cohort study (n = 94,209 pregnancies, n = 373 developed type 1 diabetes) the incidence of type 1 diabetes was higher in children exposed to maternal iron supplementation than unexposed (36.8/100,000/year compared to 28.6/100,000/year, adjusted hazard ratio 1.33, 95%CI: 1.06-1.67)...
June 13, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29898754/metformin-inhibits-stromal-aromatase-expression-and-tumor-progression-in-a-rodent-model-of-postmenopausal-breast-cancer
#8
Erin D Giles, Sonali Jindal, Elizabeth A Wellberg, Troy Schedin, Steven M Anderson, Ann D Thor, Dean P Edwards, Paul S MacLean, Pepper Schedin
BACKGROUND: Obesity and type II diabetes are linked to increased breast cancer risk in postmenopausal women. Patients treated with the antidiabetic drug metformin for diabetes or metabolic syndrome have reduced breast cancer risk, a greater pathologic complete response to neoadjuvant therapy, and improved breast cancer survival. We hypothesized that metformin may be especially effective when targeted to the menopausal transition, as this is a lifecycle window when weight gain and metabolic syndrome increase, and is also when the risk for obesity-related breast cancer increases...
June 14, 2018: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/29896066/streptozotocin-induced-diabetes-mellitus-affects-the-nmda-receptors-role-of-caffeine-administration-in-enhancing-learning-memory-and-locomotor-deficits
#9
Reem Al Marshad, Razan Al Khatib, Hanine Amer, Munirah Al Shammari, Aysha Al Otaibi, Fahad Al Otaibi, Nadiah Behbehani, Anwaar Al Sayed, Norah Al Hoty, Zuheir Hassan, Amer Kamal
Objective: To investigate the deterioration of the brain functions by diabetes mellitus (DM) and the beneficial effect of caffeine. Materials and Methods: First, the component of N-methyl-D-aspartate receptors (NMDA) of the field excitatory postsynaptic potential (fEPSP) were recorded in streptozotocin (STZ)-induced DM and compared with control animals. Later, 40 mice were divided randomly into five groups (8 mice in each): (1) Normal control (Cont), (2) diabetic group (DM), (3) animals pretreated with i...
May 2018: International Journal of Health Sciences
https://www.readbyqxmd.com/read/29891844/metabolomic-and-microarray-analyses-of-adipose-tissue-of-dapagliflozin-treated-mice-and-effects-of-3-hydroxybutyrate-on-induction-of-adiponectin-in-adipocytes
#10
Shigeki Nishitani, Atsunori Fukuhara, Jihoon Shin, Yosuke Okuno, Michio Otsuki, Iichiro Shimomura
Sodium/glucose cotransporter 2 (SGLT2) inhibitor improves systemic glucose metabolism. To clarify the effect of dapagliflozin, we performed gene expression microarray and metabolomic analyses of murine adipose tissue. Three groups of mice were used; non-diabetic control KK mice (KK), diabetic KKAy mice (KKAy), and KKAy mice treated with dapagliflozin (KKAy + Dapa). Plasma glucose levels were significantly reduced in KKAy + Dapa compared with KKAy. Food consumption was larger in KKAy + Dapa than KKAy, and there were no significant differences in body and adipose tissue weight among the groups...
June 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29890043/deletion-of-endothelial-arginase-1-does-not-improve-vasomotor-function-in-diabetic-mice
#11
Ramesh Chennupati, Merlijn J Meens, Ben J Janssen, Paul van Dijk, Theodorus B M Hakvoort, Wouter H Lamers, Jo G R De Mey, S Eleonore Koehler
Endothelial arginase 1 was ablated to assess whether this prevents hyperglycemia-induced endothelial dysfunction by improving arginine availability for nitric oxide production. Endothelial Arg1-deficient mice (Arg1-KOT ie2 ) were generated by crossing Arg1fl/fl (controls) with Tie2Cretg/- mice and analyzed by immunohistochemistry, measurements of hemodynamics, and wire myography. Ablation was confirmed by immunohistochemistry. Mean arterial blood pressure was similar in conscious male control and Arg1-KOT ie2 mice...
June 2018: Physiological Reports
https://www.readbyqxmd.com/read/29889555/genetic-variation-in-the-h19-igf2-cluster-might-confer-risk-of-developing-impaired-renal-function
#12
Eliecer Coto, Carmen Díaz Corte, Salvador Tranche, Juan Gómez, Julián R Reguero, Belén Alonso, Sara Iglesias, Helena Gil-Peña, Xueqian Yin, Pablo Coto-Segura
The H19-IGF2 imprinted gene region could be implicated in the risk of developing impaired renal function (IRF). Our aim was to determine the association of several common H19-IGF2 variants and IRF in a cohort of elderly healthy individuals. The study involved 675 individuals >65 years of age, 184 with type 2 diabetes mellitus (T2DM), and 105 with IRF (estimated glomerular filtration rate [eGFR] <60). They were genotyped for two common H19 single nucleotide polymorphisms (SNPs) (rs2839698 and rs10732516), one H19-IGF2 intergenic indel (rs201858505), and one indel in the 3'UTR of the IGF2...
June 11, 2018: DNA and Cell Biology
https://www.readbyqxmd.com/read/29882289/diet-during-pregnancy-is-implicated-in-the-regulation-of-hypothalamic-rna-methylation-and-risk-of-obesity-in-offspring
#13
Antony Kaspi, Ishant Khurana, Mark Ziemann, Timothy Connor, Briana Spolding, Paul Zimmet, Ken Walder, Assam El-Osta
SCOPE: Early life nutrition has long-lasting influence in adults through key mediators that modulate epigenetic states, although the determinants involved that underlie this response remain controversial. Because of the similarities between metabolic, physiological and endocrine changes and those occurring in human type 2 diabetes we studied the interaction of diet during pregnancy regulating RNA adenosine methylation (m6A) and the transcriptome in Psammomys obesus. METHODS AND RESULTS: Breeding pairs were randomly allocated standard diet (total digestible energy 18 MJ kg-1 ) or low-fat diet (15 MJ kg-1 )...
June 7, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29881379/betaine-in-inflammation-mechanistic-aspects-and-applications
#14
REVIEW
Guangfu Zhao, Fang He, Chenlu Wu, Pan Li, Nengzhang Li, Jinping Deng, Guoqiang Zhu, Wenkai Ren, Yuanyi Peng
Betaine is known as trimethylglycine and is widely distributed in animals, plants, and microorganisms. Betaine is known to function physiologically as an important osmoprotectant and methyl group donor. Accumulating evidence has shown that betaine has anti-inflammatory functions in numerous diseases. Mechanistically, betaine ameliorates sulfur amino acid metabolism against oxidative stress, inhibits nuclear factor-κB activity and NLRP3 inflammasome activation, regulates energy metabolism, and mitigates endoplasmic reticulum stress and apoptosis...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29876008/genome-wide-dna-differential-methylation-regions-in-colorectal-cancer-patients-in-relation-to-blood-related-family-members-obese-and-non-obese-controls-a-preliminary-report
#15
S Pamela K Shiao, Haiyan Xiao, Lixin Dong, Xiaoling Wang, Kebin Liu, Jinxiong She, Huidong Shi
Despite evidences linking methylation changes in the cancer tissues, little is known about the methylation modification in the peripheral blood. With the current study, we identified differential methylation regions (DMRs) across human genome by collecting the blood samples of colorectal cancer (CRC) patients compared to that of their blood-related family who shared genetic inheritance and environmental influences, and unrelated obese and non-obese controls by accessing publicly available Gene Expression Omnibus data...
May 22, 2018: Oncotarget
https://www.readbyqxmd.com/read/29860177/aromatic-aldehydes-as-selective-fluorogenic-derivatizing-agents-for-%C3%AE-dicarbonyl-compounds-application-to-hplc-analysis-of-some-advanced-glycation-end-products-and-oxidative-stress-biomarkers-in-human-serum
#16
Mahmoud H El-Maghrabey, Taro Nakatani, Naoya Kishikawa, Naotaka Kuroda
α-Dicarbonyl compounds (α-DCs) are very clinically important as they are considered as advanced glycation end products (AGEs) precursors and biomarkers for many chronic diseases such as diabetes and vascular diseases, in addition to their major role in progression of complications of such diseases. Aromatic aldehydes and ammonium acetate were productively used as a one-pot co-reagents for fluorogenic derivatization of α-DCs yielding fluorescent imidazole derivatives. Among the tried aromatic aldehydes, 4-carbomethoxybenzaldehyde yielded the products with best fluorescent characters...
May 18, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29859881/is-post-exposure-prevention-of-teratogenic-damage-possible-studies-on-diabetes-valproic-acid-alcohol-and-anti-folates-in-pregnancy-animal-studies-with-reflection-to-human
#17
REVIEW
Asher Ornoy, Gideon Koren, Joseph Yanai
We discuss the possibilities to prevent the post-exposure teratogenic effects of several teratogens: valproic acid (VPA), diabetes and alcohol. Co-administration of folic acid with VPA reduced the rate of Neural Tube Defects (NTD) and other anomalies in rodents, but apparently not in pregnant women. Antioxidants or the methyl donor S-adenosyl methionine prevented Autism Spectrum Disorder (ASD) like behavior in mice and rats. In vivo and in vitro studies demonstrated that antioxidants, arachidonic acid, myoinositol and nutritional agents may prevent diabetes-embryopathy...
May 31, 2018: Reproductive Toxicology
https://www.readbyqxmd.com/read/29851303/high-sucrose-low-copper-diet-in-pregnant-diabetic-rats-induces-transient-oxidative-stress-hypoxia-and-apoptosis-in-the-offspring-s-liver
#18
Zivanit Ergaz, Liza Weinstein-Fudim, Asher Ornoy
BACKGROUND: Hyperglycemia-related oxidative stress and hypoxia are important mechanisms responsible for diabetes-induced embryopathy and other complications. High sucrose low copper diet (HSD), but not regular diet (RD), induces type 2 diabetes in the inbred Cohen diabetic sensitive (CDs) rats but not in the Sabra control rats. We recently demonstrated long-term changes of DNA methylation and gene expression in various groups of genes, including genes involved in oxidant-antioxidant activity in the liver of 2-4-week-old CDs offspring of diabetic dams...
May 30, 2018: Birth Defects Research
https://www.readbyqxmd.com/read/29843022/investigating-the-target-organs-of-novel-anti-diabetic-zinc-complexes-with-organo%C3%A2-selenium-ligands
#19
Takayuki Nishiguchi, Yutaka Yoshikawa, Hiroyuki Yasui
Diabetes mellitus (DM) is a serious problem worldwide and is becoming increasingly prevalent. Previously, we reported the use of various zinc (Zn) complexes as new anti-diabetic agents. In this study, we synthesized novel organo‑selenium (Se) Zn complexes with hydroxy-pyrone derivatives that have a Zn(Se2 O2 ) coordination mode. The results of in vitro insulin-mimetic analyses showed that the compound bis(3-hydroxy-2-methyl-4(H)-pyran-4-seleno)Zn ([Zn(hmps)2 ]) exhibited the strongest activity among all the complexes...
May 12, 2018: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/29812971/epigenetic-programming-at-the-mogat1-locus-may-link-neonatal-overnutrition-with-long-term-hepatic-steatosis-and-insulin-resistance
#20
Marta Ramon-Krauel, Thais Pentinat, Vincent W Bloks, Judith Cebrià, Silvia Ribo, Ricky Pérez-Wienese, Maria Vilà, Ivonne Palacios-Marin, Antonio Fernández-Pérez, Mario Vallejo, Noèlia Téllez, Miguel Àngel Rodríguez, Oscar Yanes, Carles Lerin, Rubén Díaz, Torsten Plosch, Uwe J F Tietge, Josep C Jimenez-Chillaron
Postnatal overfeeding increases the risk of chronic diseases later in life, including obesity, insulin resistance, hepatic steatosis, and type 2 diabetes. Epigenetic mechanisms might underlie the long-lasting effects associated with early nutrition. Here we aimed to explore the molecular pathways involved in early development of insulin resistance and hepatic steatosis, and we examined the potential contribution of DNA methylation and histone modifications to long-term programming of metabolic disease. We used a well-characterized mouse model of neonatal overfeeding and early adiposity by litter size reduction...
May 29, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
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