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High glucose bone

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https://www.readbyqxmd.com/read/29440390/high-dietary-fat-and-sucrose-results-in-an-extensive-and-time-dependent-deterioration-in-health-of-multiple-physiological-systems-in-mice
#1
James G Burchfield, Melkam A Kebede, Christopher C Meoli, Jacqueline Stöckli, P Tess Whitworth, Amanda L Wright, Nolan J Hoffman, Annabel Y Minard, Xiuquan Ma, James R Krycer, Marin E Nelson, Shi-Xiong Tan, Belinda Yau, Kristen C Thomas, Natalie K Y Wee, Ee-Cheng Khor, Ronaldo F Enriquez, Bryce Vissel, Trevor J Biden, Paul A Baldock, Kyle L Hoehn, James Cantley, Gregory J Cooney, David E James, Daniel J Fazakerley
Obesity is associated with metabolic dysfunction, including insulin resistance and hyperinsulinemia, and with disorders such as cardiovascular disease, osteoporosis, and neurodegeneration. Typically, these pathologies are examined in discrete model systems and with limited temporal resolution, and whether these disorders co-occur is therefore unclear. To address this question, we examined multiple physiological systems in male C57BL/6J mice following prolonged exposure to a high-fat/high-sucrose diet (HFHSD)...
February 13, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29439598/diabetes-activates-periodontal-ligament-fibroblasts-via-nf-%C3%AE%C2%BAb-in-vivo
#2
J Zheng, S Chen, M L Albiero, G H A Vieira, J Wang, J Q Feng, D T Graves
Diabetes mellitus increases periodontitis and pathogenicity of the oral microbiome. To further understand mechanisms through which diabetes affects periodontitis, we examined its impact on periodontal ligament fibroblasts in vivo and in vitro. Periodontitis was induced by inoculation of Porphyromonas gingivalis and Fusobacterium nucleatum in normoglycemic and diabetic mice. Diabetes, induced by multiple low-dose injections of streptozotocin increased osteoclast numbers and recruitment of neutrophils to the periodontal ligament, which could be accounted for by increased CXC motif chemokine 2 (CXCL2) and receptor activator of nuclear factor kappa B ligand (RANKL) expression by these cells...
February 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29434184/cyclosporin-a-aggravates-calcification-of-vascular-smooth-muscle-cells-under-high-glucose-conditions-with-a-calcifying-medium
#3
Dae Hee Kim, Keon Cheol Lee, Sang Youb Han
BACKGROUND Vascular calcification (VC) progresses substantially even after kidney transplantation, and is a predictor of morbidity and mortality. However, the effect of cyclosporin A (CsA) on VC has not been reported in diabetic kidney transplant patients. In this study, we evaluated the effect of CsA on the VC of mouse vascular smooth muscle cells (VSMCs) under high glucose (HG). MATERIAL AND METHODS To demonstrate the effect of CsA (1.0 µmol/L) and HG (30 mM) in the induction of the VC of the VSMCs, we determined alkaline phosphatase (ALP) activity, microscopic morphology of calcification, the expressions of the calcification and inflammation-related genes, and the intracellular calcium concentrations in VSMCs...
February 13, 2018: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29431735/vhl-deletion-in-osteoblasts-boosts-cellular-glycolysis-and-improves-global-glucose-metabolism
#4
Naomi Dirckx, Robert J Tower, Evi M Mercken, Roman Vangoitsenhoven, Caroline Moreau-Triby, Tom Breugelmans, Elena Nefyodova, Ruben Cardoen, Chantal Mathieu, Bart Van der Schueren, Cyrille B Confavreux, Thomas L Clemens, Christa Maes
The skeleton has emerged as an important regulator of systemic glucose homeostasis, with osteocalcin and insulin representing prime mediators of the interplay between bone and energy metabolism. However, genetic evidence indicates that osteoblasts can influence global energy metabolism through additional, as yet unknown, mechanisms. Here, we report that constitutive or postnatally induced deletion of the hypoxia signaling pathway component von Hippel-Lindau (VHL) in skeletal osteolineage cells of mice led to high bone mass as well as hypoglycemia and increased glucose tolerance, not accounted for by osteocalcin or insulin...
February 12, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29423945/skeletal-growth-body-composition-and-metabolic-risk-among-north-sudanese-immigrant-children
#5
Mohammad H Alasagheirin, Mary K Clark
OBJECTIVES: Children of immigrants and refugees from developing countries are at risk for poor growth that could contribute to adult chronic disease. This study describes the physical growth, bone growth, body composition, metabolic risks, physical activity, and food security of Sudanese children living in the United States. DESIGN AND SAMPLE: Cross-sectional descriptive study of 64 Sudanese children age 5-18. MEASURES: Bone mineral content (BMC), bone density (aBMD), and body composition (fat, lean mass, percent body fat) were measured using DXA...
February 9, 2018: Public Health Nursing
https://www.readbyqxmd.com/read/29420594/effects-of-metabolic-syndrome-on-bone-mineral-density-histomorphometry-and-remodelling-markers-in-male-rats
#6
Sok Kuan Wong, Kok-Yong Chin, Farihah Hj Suhaimi, Fairus Ahmad, Soelaiman Ima-Nirwana
This study aimed to evaluate the effects of metabolic syndrome (MetS) induced by high-carbohydrate high-fat (HCHF) diet on bone mineral density (BMD), histomorphometry and remodelling markers in male rats. Twelve male Wistar rats aged 12 weeks old were randomized into two groups. The normal group was given standard rat chow while the HCHF group was given HCHF diet to induce MetS. Abdominal circumference, blood glucose, blood pressure, and lipid profile were measured for the confirmation of MetS. Bone mineral density, histomorphometry and remodelling markers were evaluated for the confirmation of bone loss...
2018: PloS One
https://www.readbyqxmd.com/read/29416527/the-impact-of-type-2-diabetes-on-bone-fracture-healing
#7
REVIEW
Carlos Marin, Frank P Luyten, Bart Van der Schueren, Greet Kerckhofs, Katleen Vandamme
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease known by the presence of elevated blood glucose levels. Nowadays, it is perceived as a worldwide epidemic, with a very high socioeconomic impact on public health. Many are the complications caused by this chronic disorder, including a negative impact on the cardiovascular system, kidneys, eyes, muscle, blood vessels, and nervous system. Recently, there has been increasing evidence suggesting that T2DM also adversely affects the skeletal system, causing detrimental bone effects such as bone quality deterioration, loss of bone strength, increased fracture risk, and impaired bone healing...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29405095/shift-work-cycle-induced-alterations-of-circadian-rhythms-potentiate-the-effects-of-high-fat-diet-on-inflammation-and-metabolism
#8
Sam-Moon Kim, Nichole Neuendorff, Robert C Alaniz, Yuxiang Sun, Robert S Chapkin, David J Earnest
Based on genetic models with mutation or deletion of core clock genes, circadian disruption has been implicated in the pathophysiology of metabolic disorders. Thus, we examined whether circadian desynchronization in response to shift work-type schedules is sufficient to compromise metabolic homeostasis and whether inflammatory mediators provide a key link in the mechanism by which alterations of circadian timekeeping contribute to diet-induced metabolic dysregulation. In high-fat diet (HFD)-fed mice, exposure to chronic shifts of the light-dark cycle (12 h advance every 5 d): 1) disrupts photoentrainment of circadian behavior and modulates the period of spleen and macrophage clock gene rhythms; 2) potentiates HFD-induced adipose tissue infiltration and activation of proinflammatory M1 macrophages; 3) amplifies macrophage proinflammatory cytokine expression in adipose tissue and bone marrow-derived macrophages; and 4) exacerbates diet-induced increases in body weight, insulin resistance, and glucose intolerance in the absence of changes in total daily food intake...
February 5, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29364588/incretin-hormones-their-role-in-health-and-disease
#9
REVIEW
Michael A Nauck, Juris J Meier
Incretin hormones are gut peptides that are secreted after nutrient intake and stimulate insulin secretion together with hyperglycaemia. GIP (glucose-dependent insulinotropic polypeptide) und GLP-1 (glucagon-like peptide-1) are the known incretin hormones from the upper (GIP, K cells) and lower (GLP-1, L cells) gut. Together, they are responsible for the incretin effect: a two- to three-fold higher insulin secretory response to oral as compared to intravenous glucose administration. In subjects with type 2 diabetes, this incretin effect is diminished or no longer present...
February 2018: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29359470/shining-light-on-the-metabolic-role-of-the-cytokine-tnfsf14-and-the-implications-on-hepatic-il-6-production
#10
Bernadette M Saunders, Caroline Rudnicka, Aleksandra Filipovska, Stefan Davies, Natalie Ward, Jana Hricova, Markus P Schlaich, Vance B Matthews
The cytokine Tumor Necrosis Factor Superfamily member 14, TNFSF14 (or LIGHT), is a controversial player in numerous diseases. We investigated the role of endogenously expressed TNFSF14 in diet-induced obesity in vivo. Firstly, we studied the effects of Tnfsf14 ablation on the development of obesity, glucose intolerance, insulin resistance, steatosis, tissue inflammation, and mitochondrial respiration in the liver. Secondly, we examined the role of TNFSF14 expression in hematopoietic cells on obesity and insulin sensitivity...
January 2018: Immunology and Cell Biology
https://www.readbyqxmd.com/read/29353038/cereblon-crbn-deletion-reverses-streptozotocin-induced-diabetic-osteoporosis-in-mice
#11
Cong Yao, Xiong Guo, Wan-Xia Yao, Chun Zhang
Diabetes mellitus is a major cause to induce osteoporosis. Though the pathogenesis of osteoporosis progression has been well investigated, its still not fully understood. Recently, cereblon (CRBN) was considered as a negative modulator of adenosine monophosphate-activated protein kinase (AMPK) in vitro and in vivo. Here, we presented results indicating that CRBN could effectively regulate osteoporosis development. In STZ-induced wild type (WT) mice with diabetes, the osteoclasts were highly increased along with the deterioration of bone structure...
January 15, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29342321/contributions-of-material-properties-and-structure-to-increased-bone-fragility-for-a-given-bone-mass-in-the-ucd-t2dm-rat-model-of-type-2-diabetes
#12
Claire Acevedo, Meghan Sylvia, Eric Schaible, James L Graham, Kimber L Stanhope, Lionel N Metz, Bernd Gludovatz, Ann V Schwartz, Robert O Ritchie, Tamara N Alliston, Peter J Havel, Aaron J Fields
Adults with type 2 diabetes (T2D) have a higher fracture risk for a given bone quantity, but the mechanisms remain unclear. Using a rat model of polygenic obese T2D, we demonstrate that diabetes significantly reduces whole-bone strength for a given bone mass (micro-CT-derived BMC), and we quantify the roles of T2D-induced deficits in material properties versus bone structure, i.e., geometry and microarchitecture. Lumbar vertebrae and ulnae were harvested from 6-month-old lean Sprague-Dawley rats, obese Sprague-Dawley rats, and diabetic obese UCD-T2DM rats (diabetic for 69 ± 7 days; blood glucose >200 mg/dl)...
January 17, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29342317/osteoblast-like-mc3t3-e1-cells-prefer-glycolysis-for-atp-production-but-adipocyte-like-3t3-l1-cells-prefer-oxidative-phosphorylation
#13
Anyonya R Guntur, Akos A Gerencser, Phuong T Le, Victoria E DeMambro, Sheila A Bornstein, Shona A Mookerjee, David E Maridas, David E Clemmons, Martin D Brand, Clifford J Rosen
Mesenchymal stromal cells (MSCs) are early progenitors that can differentiate into osteoblasts, chondrocytes and adipocytes. We hypothesized that osteoblasts and adipocytes utilize distinct bioenergetic pathways during MSC differentiation. To test this hypothesis, we compared the bioenergetic profiles of pre-osteoblast MC3T3-E1 cells and calvarial osteoblasts with pre-adipocyte 3T3L1 cells, before and after differentiation. Differentiated MC3T3-E1 osteoblasts met ATP demand mainly by glycolysis with minimal reserve glycolytic capacity, whereas non-differentiated cells generated ATP through oxidative phosphorylation...
January 17, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29329013/antiobesity-effect-of-lactobacillus-reuteri-263-associated-with-energy-metabolism-remodeling-of-white-adipose-tissue-in-high-energy-diet-fed-rats
#14
Li-Han Chen, Yi-Hsing Chen, Kuan-Chen Cheng, Ting-Yi Chien, Ching-Hung Chan, Shu-Ping Tsao, Hui-Yu Huang
Obesity is a serious and costly issue to the medical welfare worldwide. Probiotics have been suggested as one of the candidates to resolve the obesity-associated problems, but how they combat obesity is not fully understood. Herein, we investigated the effects of Lactobacillus reuteri 263 (L. reuteri 263) on antiobesity using four groups of Sprague-Dawley rats (n=10/group), namely, C (normal diet with vehicle treatment), HE [high-energy diet (HED) with vehicle treatment], 1X (HED with 2.1×109 CFU/kg/day of L...
November 16, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29328402/mir%C3%A2-203%C3%A2-3p-participates-in-the-suppression-of-diabetes%C3%A2-associated-osteogenesis-in-the-jaw-bone-through-targeting-smad1
#15
Yuying Tang, Leilei Zheng, Jie Zhou, Yang Chen, Lan Yang, Feng Deng, Yun Hu
Certain microRNAs (miRs) have important roles in the maintenance of bone development and metabolism, and a variety of miRs are known to be deregulated in diabetes. The present study investigated the role of miR‑203‑3p in the regulation of bone loss by assessing jaw bones of a rat model of type 2 diabetes. The results indicated that miR‑203‑3p inhibited osteogenesis in the jaws of diabetic rats and in rat bone marrow mesenchymal stem cells cultured in high‑glucose medium. A luciferase re-porter assay was used to verify the bioinformatics prediction that miR‑203‑3p targets the 3'‑untranslated region of Smad1, which is an important mediator of the bone morphogenetic protein (BMP)/Smad pathway...
January 9, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29321172/modest-decreases-in-endogenous-all-trans-retinoic-acid-produced-by-a-mouse-rdh10-heterozygote-provoke-major-abnormalities-in-adipogenesis-and-lipid-metabolism
#16
Di Yang, Marta G Vuckovic, Carolyn P Smullin, Myeongcheol Kim, Christabel Pui-See Lo, Emily Devericks, Hong Sik Yoo, Milena Tintcheva, Yinghua Deng, Joseph L Napoli
Pharmacological dosing of all-trans-retinoic acid (atRA) controls adiposity in rodents by inhibiting adipogenesis and inducing fatty acid oxidation. Retinol dehydrogenases (Rdh) catalyze the first reaction that activate retinol into atRA. This study examined post-natal contributions of Rdh10 to atRA biosynthesis and physiological functions of endogenous atRA. Embryonic fibroblasts from Rdh10 heterozygote hypomorphs or with a total Rdh10 knockout exhibit decreased atRA biosynthesis and escalated adipogenesis...
January 10, 2018: Diabetes
https://www.readbyqxmd.com/read/29319174/chronic-high-glucose-and-insulin-stimulate-bone-marrow-stromal-cells-adipogenic-differentiation-in-young-spontaneously-hypertensive-rats
#17
Antonio Hernandes Chaves Neto, Victor Gustavo Balera Brito, Thamine Landim de Barros, Caril Constante Ferreira do Amaral, Dóris Hissako Sumida, Sandra Helena Penha Oliveira
We evaluated whether genetic predisposition is sufficient to induce changes due to chronic high glucose (HG; 25 mmol/L) in the presence or absence of insulin (HGI; 10 µg/mL) on osteogenic differentiation and markers in bone-marrow mesenchymal stem cells (BMSCs) from young Wistar (WBMSCs) and spontaneous hypertensive rats (SBMSCs) without hypertension. HG suppressed osteogenic differentiation in both the strains, observed by mineralization inhibition and decreased levels of the osteogenic markers Runx2, osterix, osteopontin, and bone sialoprotein, compared to osteogenic medium (OM) cells...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29315243/conditions-inducing-excessive-o-glcnacylation-inhibit-bmp2-induced-osteogenic-differentiation-of-c2c12-cells
#18
Hanna Gu, Mina Song, Kanitsak Boonanantanasarn, Kyunghwa Baek, Kyung Mi Woo, Hyun-Mo Ryoo, Jeong-Hwa Baek
Hyperglycemic conditions in diabetic patients can affect various cellular functions, including the modulation of osteogenic differentiation. However, the molecular mechanisms by which hyperglycemia affects osteogenic differentiation are yet to be clarified. This study aimed to investigate whether the aberrant increase in protein O-linked-β-N-acetylglucosamine glycosylation (O-GlcNAcylation) contributes to the suppression of osteogenic differentiation due to hyperglycemia. To induce osteogenic differentiation, C2C12 cells were cultured in the presence of recombinant human bone morphogenetic protein 2 (BMP2)...
January 9, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29305863/mir-449-overexpression-inhibits-osteogenic-differentiation-of-bone-marrow-mesenchymal-stem-cells-via-suppressing-sirt1-fra-1-pathway-in-high-glucose-and-free-fatty-acids-microenvironment
#19
Bo Qu, Kai Gong, Hong-Sheng Yang, Yu-Gang Li, Tao Jiang, Zhi-Mou Zeng, Zong-Rui Cao, Xian-Ming Pan
Diabetic osteoporosis is a chronic complication caused by diabetes mellitus, and However, the exact mechanism of diabetes mellitus-induced osteoporosis is still unknown. In this study, we investigate the effect of miR-449 on osteogenic differentiation and its underlying mechanism in human bone marrow-derived mesenchymal stem cells (hBMSCs) with high glucose (HG) and free fatty acids (FFA) treatment. Results showed that after culturing for 14 days, high glucose (HG) and free fatty acids (FFA) treatment dramatically decreased mineralization of human bone marrow-derived mesenchymal stem cells (hBMSCs) compared with cells treated with osteogenic medium (OM) alone...
January 3, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29304778/inflammation-and-glucose-homeostasis-are-associated-with-specific-structural-features-among-adults-without-knee-osteoarthritis-a-cross-sectional-study-from-the-osteoarthritis-initiative
#20
Alina C Stout, Mary F Barbe, Charles B Eaton, Mamta Amin, Fatimah Al-Eid, Lori Lyn Price, Bing Lu, Grace H Lo, Ming Zhang, Jincheng Pang, Timothy E McAlindon, Jeffrey B Driban
BACKGROUND: Greater age and body mass index are strong risk factors for osteoarthritis (OA). Older and overweight individuals may be more susceptible to OA because these factors alter tissue turnover in menisci, articular cartilage, and bone via altered glucose homeostasis and inflammation. Understanding the role of inflammation and glucose homeostasis on structural features of early-stage OA may help identify therapeutic targets to delay or prevent the onset of OA among subsets of adults with these features...
January 5, 2018: BMC Musculoskeletal Disorders
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